Okay, okay, yes it's a toy, but so's my iPod (it is, in fact, my favorite toy at the moment). As long as we're going to be playing with electronics, why not make them sustainably-powered?

"Bird Electron is developing a solar iPod charger to go on limited sale from May. The unit very sensibly comes with a battery built in, meaning you can charge that during the day and plug your iPod into it overnight. At the moment it apparently takes two fine days to get a full charge, but they reckon a single day's worth should be enough to cover you for a shortish commute. Obviously it's going to take years before the electricity savings pay for the charger, but the idea here is ecology rather than economy. Man."
(thanks, Cory!)