This personal project was created as a birthday gift to a friend, whose party I was unfortunately unable to attend. Its design was based on her own idea, with the only modification being making it into a pin-on brooch rather than a necklace. The operations manual is attached inside the metal case, while the actual mechanism is incorporated into the cover. The all-seeing cat’s eye keeps watch against unscrupulous users or thieves.
If interested, I can reproduce this design or something like it.
Contact me at the link in the header bar to discuss requirements and payment.