iYo Yo-Yo powered charger for iPhone.
Peter Thuvander created a very useful toy. Not just a yo-yo but a yo-yo that can charge your cell phone. This nifty toy not only provides hours of fun but will charge your iPhone too. The iYo is fitted with an LI cell so that while you yo-yo, the induction is creating a charge, then you simply plug in your iPhone and charge it up. Clean, simple and fun. Great Job Peter!
Source: Peter Thuvander