How much do creature-shaped chip options cost? | Charges depend on parts and custom work [OK Prostate Chip]

This page is based on entries from "ok-lab's diary" (https://ok-lab.hatenablog.com/), the Japanese development diary written by Mr. Okada, founder of OK Lab, a small company in Japan (Okada Comfortable Life Laboratory). Only the entries about creature-shaped chip prices and named options are summarized here, in order of publication. Past prices and sizes are as written at the time. Current prices come from the official product list (retrieved September 4, 2026). Quotations are translated from Japanese.

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Note: This page is a personal reading log by someone with no connection to the maker or the seller. It reflects the source entries as of their publication dates and makes no guarantee of accuracy or safety. The product is not a medical device; talk to a doctor about any health decision. Check the official site for current information. This page contains advertising.

In short

• Creature-shaped options carried separate charges for materials, extra parts, and custom work.
• Mr. Okada itemized charges, revised designs, and recommended protective wire covers for the Alien.
• The current list includes some base chips; several named custom builds have no matching listing.

If you see blood in your urine, even a small amount or for the first time, do not wait and see. See a urologist right away. If you suddenly cannot urinate, or the device cannot be removed, do not try to fix it yourself. Go to a medical facility, including emergency care, immediately.

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About this product

The OK Prostate Chip is a small device that is placed in the urethra (the urine passage) so that it acts on the prostate; the maker sells it in several shapes, sizes and materials. It is made and sold by OK Lab (Okada Comfortable Life Laboratory), a small company in Japan, through its own online store, and prices are in Japanese yen (JPY). The maker's development diary, "ok-lab's diary", is written in Japanese. This page is an English summary of it, and every quotation is translated. OK Lab ships internationally, so readers outside Japan can order (see "Buying from outside Japan" below). Product names on this page are plain-English descriptions. The official Japanese product name is shown once in the product table so you can find the same item in the store.

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Before you read: key terms

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What happens: creature-shaped chip prices

The OK Prostate Chip is a device placed in the urethra (the urine passage) to act on the prostate. Creature-shaped names cover complete devices and additions to existing chips, so they do not share one price. Some enlarge the chip's middle; others add loops at its tip, intended to sit in the bladder. Mr. Okada presents these changes as ways to alter contact or help the device stay in place.

Comma-shaped chip prices began as plans for separate materials

In an entry published in March 2019, comma-shaped chips were still prototypes, with proposed prices excluding tax. Short resin versions were ¥4,000 (about $26 at ¥156 = $1, rate as of 2026-09-04); short glass and ceramic versions were ¥5,000 (about $32 at ¥156 = $1, rate as of 2026-09-04). The medium-length glass and ceramic versions were ¥6,000 (about $38 at ¥156 = $1, rate as of 2026-09-04).

The proposed designs added a curved tail to existing chip shapes. Mr. Okada set the price for other versions at the existing chip price plus ¥2,000 (about $13 at ¥156 = $1, rate as of 2026-09-04).

(Source: ok-lab's diary, published March 2019)
https://ok-lab.hatenablog.com/entry/2019/03/30/160657

Resin Zoro pricing covered the chip and its thread

An entry published in August 2021 announced the irregular resin chip (Zoro) for release the following week. Its price was ¥5,000 (about $32 at ¥156 = $1, rate as of 2026-09-04) excluding tax, including ¥500 (about $3 at ¥156 = $1, rate as of 2026-09-04) for thread, and it was limited to two-thread arrangements. Sizes were S at 36mm, M at 40mm, and L at 44mm. For the separately described version with a screw-shaped helper, Mr. Okada allowed customers to choose the two parts' sizes independently.

(Source: ok-lab's diary, published August 2021)
https://ok-lab.hatenablog.com/entry/2021/08/28/125823

Belly enlargement carried extra charges alongside one serious reported incident

In an entry published in January 2024, Mr. Okada proposed ¥2,000 (about $13 at ¥156 = $1, rate as of 2026-09-04) excluding tax for resin belly enlargement. It applied to slim and wide double-twist ceramic chips and the ceramic chip with a raised center.

In his own trial, he tested a prototype about 13.3mm wide. He reports heart failure after the device had remained in place, followed by recovery within several hours after removal. Mr. Okada attributed the episode to the oversized chip.

(Source: ok-lab's diary, published January 2024)
https://ok-lab.hatenablog.com/entry/2024/01/20/122910

Standard Alien pricing included three chips, connecting wire, and tubing

In an entry published in May 2024, the connected S-shaped device (Alien) had a standard price of ¥13,000 (about $83 at ¥156 = $1, rate as of 2026-09-04) excluding tax. That covered three chips, their shape-memory wire connection (wire that returns toward its original shape), and a tube cover. An additional mesh stopper between two sections was priced at ¥2,000 (about $13 at ¥156 = $1, rate as of 2026-09-04). Mr. Okada said nonstandard lengths, widths, or angles required individual specifications and custom charges.

(Source: ok-lab's diary, published May 2024)
https://ok-lab.hatenablog.com/entry/2024/05/18/122913

Vibrating Alien pricing included a separate motor conversion charge

In an entry published in June 2024, the vibrating Alien was priced at ¥17,000 (about $109 at ¥156 = $1, rate as of 2026-09-04) excluding tax. The conversion charge was ¥4,000 (about $26 at ¥156 = $1, rate as of 2026-09-04) excluding tax, reflecting the difficulty of placing the motor in the bladder-tip section.

The design carried power along the connecting wire to a cable at the rear. Mr. Okada recommended an 8mm motor, 2mm thick, because he considered strong vibration unnecessary.

(Source: ok-lab's diary, published June 2024)
https://ok-lab.hatenablog.com/entry/2024/06/08/123008

Bladder mouse pricing added two ears to an existing loop

In an entry published in May 2025, the ear-loop device (bladder mouse) cost ¥6,000 (about $38 at ¥156 = $1, rate as of 2026-09-04) excluding tax. The published breakdown was ¥4,000 (about $26 at ¥156 = $1, rate as of 2026-09-04) for the bladder loop and ¥2,000 (about $13 at ¥156 = $1, rate as of 2026-09-04) for both ears, also excluding tax. Mr. Okada intended the ears to spread contact toward the back of the bladder. He said suitable ear dimensions remained unsettled and offered to make versions according to customers' requested specifications.

(Source: ok-lab's diary, published May 2025)
https://ok-lab.hatenablog.com/entry/2025/05/10/122936

Angel wings pricing excluded an additional mandatory attachment charge

In an entry published in September 2025, tip-mounted wire loops (angel wings) cost ¥3,000 (about $19 at ¥156 = $1, rate as of 2026-09-04) excluding tax through 40mm. Required work extending the same wire alongside the chip added ¥1,000 (about $6 at ¥156 = $1, rate as of 2026-09-04) excluding tax. That attachment charge applied to every chip receiving the wings. Mr. Okada favored wings around 25mm and 0.1mm wire for a gentler feel.

(Source: ok-lab's diary, published September 2025)
https://ok-lab.hatenablog.com/entry/2025/09/27/123018

Centipede pricing depended on how many leg pairs were included

In an entry published in October 2025, the wire-legged device (centipede) had a ¥2,000 (about $13 at ¥156 = $1, rate as of 2026-09-04) basic structure. Prices were excluding tax: configurations with 4 or more pairs added ¥1,500 (about $10 at ¥156 = $1, rate as of 2026-09-04) per pair; those with 3 or fewer added ¥2,000 (about $13 at ¥156 = $1, rate as of 2026-09-04) per pair. The diary's prototype totals were ¥17,000, (about $109 at ¥156 = $1, rate as of 2026-09-04) ¥14,000, (about $90 at ¥156 = $1, rate as of 2026-09-04) and ¥11,000, (about $70 at ¥156 = $1, rate as of 2026-09-04) excluding tax.

Mr. Okada described 0.1mm leg wire as milder. He found 0.15mm too harsh for his own use lasting more than half a day or during sleep.

(Source: ok-lab's diary, published October 2025)
https://ok-lab.hatenablog.com/entry/2025/10/18/122911

Miniature centipede pricing separated the shaft from its fine legs

In an entry published in May 2026, the miniature centipede used 0.04mm wire with silicone rubber on every leg tip. Its 25cm shaft cost ¥3,000 (about $19 at ¥156 = $1, rate as of 2026-09-04) excluding tax; the 8cm section with 16 pairs of legs cost ¥4,000 (about $26 at ¥156 = $1, rate as of 2026-09-04) excluding tax. The published total was ¥7,000 (about $45 at ¥156 = $1, rate as of 2026-09-04) excluding tax.

Mr. Okada wanted a less demanding construction method that could be sold more cheaply. He said production could yield 15–18 pairs, rather than exactly 16. He therefore asked customers to accept approximate leg counts and lengths.

(Source: ok-lab's diary, published May 2026)
https://ok-lab.hatenablog.com/entry/2026/05/30/122914

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The maker's answer to creature-shaped chip prices

Mr. Okada's responses included protective covers, medical referral after a reported incident, and changes to unfinished designs.

Alien cover savings came with the maker's warning about exposed wire

In the entry published in May 2024, removing the Alien's tube cover reduced the price by ¥1,000 (about $6 at ¥156 = $1, rate as of 2026-09-04). Mr. Okada considered exposed wire harsh at the sensitive bladder outlet. Other size changes added ¥300 (about $2 at ¥156 = $1, rate as of 2026-09-04) per changed location. Despite offering the cover deduction, Mr. Okada recommended keeping the wire covered.

(Source: ok-lab's diary, published May 2024)
https://ok-lab.hatenablog.com/entry/2024/05/18/122913

The bladder mouse discussion included medical referral after a trapped-cord report

In the entry published in May 2025, a customer reported that about 30cm of a vibrating chip's cord would not come out. Mr. Okada suspected tangling inside the bladder. The diary does not record how the cord was recovered or whether the customer received treatment. Mr. Okada said he advised the customer to see a doctor.

(Source: ok-lab's diary, published May 2025)
https://ok-lab.hatenablog.com/entry/2025/05/10/122936

Apple Alien gained rubber joints; Prototype 1 was rejected

In an entry published in January 2026, the curved apple-tip chip (Apple Alien) changed to joints with rubber filling the gaps. This replaced the earlier approach based on fractured resin. Mr. Okada declared Prototype 1 unsuccessful because it bent poorly and took substantial work to make.

He marked it not for sale and said no improved version of that prototype was planned. For the other designs, Mr. Okada asked customers to specify the resin sections' lengths and widths.

(Source: ok-lab's diary, published January 2026)
https://ok-lab.hatenablog.com/entry/2026/01/03/122924

If you see blood in your urine, even a small amount or for the first time, do not wait and see. See a urologist right away. If you suddenly cannot urinate, or the device cannot be removed, do not try to fix it yourself. Go to a medical facility, including emergency care, immediately.

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How creature-shaped chip prices changed over time

The diary does not say what the current state is.

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OK Prostate Chip products related to creature-shaped chip prices

The current list confirms these base products, with prices separate from the historical custom work described above.

Products that appear in these entries

The irregular resin chip is listed in OK Lab's own online store.

The double-twist ceramic chip is listed in OK Lab's own online store.

(Source: ok-lab's diary, published August 2021)
https://ok-lab.hatenablog.com/entry/2021/08/28/125823

(Source: ok-lab's diary, published October 2023)
https://ok-lab.hatenablog.com/entry/2023/10/21/123054

(Source: ok-lab's diary, published January 2024)
https://ok-lab.hatenablog.com/entry/2024/01/20/122910

Products the diary mentioned as alternatives

The diary names no alternative.

Current listings for comma-shaped chips, belly enlargements, Alien builds, bladder mouse, wing attachments, centipedes, and apple-tip designs: Not recorded in the material.

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Common worries about creature-shaped chip prices

The diary records questions about custom shapes and quoted charges, with some outcomes left unrecorded.

"Can belly enlargement follow my drawing?"

In the entry published in January 2024, a customer asked for a ceramic chip's middle bump to increase from 9mm to 16mm. Mr. Okada initially questioned the spherical shape, then accepted a drawing showing a flatter outline. He produced a similar shape but discovered that he had used the wrong base chip.

The diary does not record whether the customer's intended order was completed. Mr. Okada offered similar shapes based on the 10 illustrated patterns or customers' drawings, while reserving judgment on difficult designs.

(Source: ok-lab's diary, published January 2024)
https://ok-lab.hatenablog.com/entry/2024/01/20/122910

"Does the centipede quote already include Japanese consumption tax?"

In an entry published in December 2025, a customer asked whether the ten-pair centipede price was ¥18,700 (about $120 at ¥156 = $1, rate as of 2026-09-04), including ¥1,700 (about $11 at ¥156 = $1, rate as of 2026-09-04) consumption tax. Their request specified 0.15mm leg wire, 90mm overall length, and two 25cm threads. The entry reproduces the question without a separate confirmation. The diary does not record whether that order was completed.

(Source: ok-lab's diary, published December 2025)
https://ok-lab.hatenablog.com/entry/2025/12/13/122917

"Can Apple Alien pricing cover longer, thinner custom chips?"

In an entry published in December 2025, Mr. Okada responded to requests for long, thin chips with a customizable apple-tip design. Its proposed base cost ¥3,000 (about $19 at ¥156 = $1, rate as of 2026-09-04) excluding tax. Each added section cost ¥2,000 (about $13 at ¥156 = $1, rate as of 2026-09-04) for a flat shape or ¥3,000 (about $19 at ¥156 = $1, rate as of 2026-09-04) for a twisted shape, excluding tax.

The suggested base measured 60–80mm long, with a 2–4mm shaft and a bend between 60 and 90 degrees. Mr. Okada said dimensions outside the stated ranges would have different prices.

(Source: ok-lab's diary, published December 2025)
https://ok-lab.hatenablog.com/entry/2025/12/27/122915

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Buying from outside Japan

OK Lab ships internationally to countries covered by Japan Post's EMS courier service. Overseas orders are paid in advance by PayPal. Each order carries a ¥400 (about $3 at ¥156 = $1, rate as of 2026-09-04) handling fee, and EMS shipping is charged on top. These terms come from OK Lab's official sales-terms page (written here as plain text, not a link: ok-lab.net/docs/law), checked on September 7, 2026; confirm them on the official store before you order, because they can change.

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Summary of this article

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Source: ok-lab's diary (Okada Comfortable Life Laboratory). The original entries are in Japanese; quotations on this page are translated. Photos and videos are on the original entries.