"All Things Fall" by Sebastian Burdon and Matt Collishaw, a 3DPrinted zoetrope

*Since it needs a strobe to work, I'm not sure that "Zoetrope" is the proper term-of-art for a remarkable device of this kind. It's hard to beat for nifty, though.

http://3dprint.com/64573/all-things-fall-zoetrope/