Geared necklace from the geared ring people

Brother-and-sister designers Rachel and Glen Liberman, creators of the amazing Kinekt gear-ring, have created a matching stainless steel geared necklace whose chain passes through a set of meshing gears, spinning them round and round.

I own one of the rings and it's really excellent — just a marvel. The necklaces are $185 (or $330 with the ring) and come with 18", 20" and 30" chains.

Gear Necklace