We all have used magnets in our fridges, but, how about having them with a bit more fun-ctionality? XD
I have yet to design more types of gears, a motor maybe...who knows.
I was once convinced I could come up with a single-wire power-system for something along these lines, wherein the "wire" would be metal gears and the magnets would be one plate of a capacitor... I think I was able to light an LED dimly, but driving a motor might be a bit much ;)
That would be awesome, however, Thinkgeek needs an industrial basis production to sell things, as far as I know, they do not sell handmade things (assembly, in this case)
I would rather sell the idea to someone to produce it. XD
yeah ! an electric motor, driven by a couple of alkaline button batteries ???