wiggle your foot, harness that energy for your phone

So you shake your foot alot?  Well here is a build for you.  The author took a music pedal and built a generator out of it.  Not so sure how durable it is, but it could help generate electricity.  I don’t think I would buy the pedal thought…well not at the price radio shack has it for ($40 ish).

http://www.instructables.com/id/Shaky-Leg-Power-Generator/