Below, Evgeniy Grigoriev's fully functional Rubik's Cube has been shrunk down to 10mm (that's less than half an inch). Why? Grigoriev roped in world record status with his one-of-a-kind cube fit for fairies and dwarves. Actually, I think it's too tiny even for dwarves.
*If you have freakishly tiny fingers, you can buy Evgeniy's 12mm version for $15 bucks.