Sure, you'll need to have a functioning Nintendo DS Lite to work from, but it's just a minor expense from there to make your own solar-powered DS "light" using these free guidelines from Instructables.com.
The brainchild of a 14-year-old gamer from Texas, the DS "light" utilizes the DS' generous surface area to draw a constant trickle of power from the sun, virtually guaranteeing that you'll never need to use your wall or car charger again.
Nice work, kid -- don't ever let 'em tell you games rot your brain. [The Awesomer]
