I'm going to open a wind farm and I'm going to make every single employee wear this cute contraption as a uniform.
You think I'm kidding?
You're right I am. 
Here's how it works:
'When walking or standing outside on a windy day, the windmills turn. Small individual power generating circuits transfer the rotational energy into usable voltage. In this prototype, the power generated turns on white LEDs, but the energy could be used to power mobile devices or stored for later use. '