Spheres o' gears

Deviantart's Taffgoch creates beautiful models of spheres made from kinetic elements, primarily gears.

JWZ's got links to a bunch of awesome related stuff, like ball bearings in a hypersphere.

If you like this sort of thing, you can buy a similar 3D printed instance from Mechaneu, who have a Shapeways store.

92 Gears – Animation – Final