10 unusual, innovative, eco-friendly cell phone chargers

Everyone knows how frustrating it is when your phone's battery dies and a power outlet is nowhere in sight. Just think about it: you are camping in the woods, enjoying the great outdoors, and you can't even tweet about it. Fortunately, a whole bunch of alternative cell phone chargers exist and suck power from built-in batteries or renewable energy sources like the wind or Mr Sun. In fact, we have collected 10 of these unusual, eco-friendly cell phone chargers and put them together just for you.