Prosthetic Nail Polish Holder Attachment

This attachment is designed to work with SPU Engineering's Falcon Hand (pictured). Its purpose is to allow someone using the Falcon Hand to apply nail polish to their other hand, and has been designed to fit a wide range of nail polish lid-brushes with circular cross-sections. It can rotate through about 330 degrees in one axis and 30 degrees in the other.

It is meant to be used with a 3/4" 4-40 hex-head bolt and 4-40 nut (or wing nut, ideally). The nut can be loosened before each clip adjustment, but it works perfectly well to just make clip adjustments while the bolt is snuggly tightened (given the low load).