Soccket

Have you seen this??? Absolutely genius.

"The SOCCKET is the world's first eco-friendly portable generator in the form of a soccer ball. Created for resource-poor communities in the developing world, the SOCCKET harnesses the kinetic energy generated during play with the ball, and stores it as electrical energy that can be used to power different appliances like lamps and water sterilizers." http://unchartedplay.com/home.html