As a Girl Tech Geek with a Jewelry obsession the Kinekt rings and necklaces are a dream come true! The designs are patented, have fantastic warranties and the company is run by a brother and sister team.
If you need to fidget a bit to pay attention in lectures or long meetings the ring is the perfect solution. The gears roll satisfyingly between your fingers yet it is silent. The necklaces are a more recent invention and the chain rolls between the gears as you move. I can tell you from experience that they are both conversation starters!
Where to find them: