These Durable Foam Solar Racers Could Last and Run Forever

Nerf showed the world that toys made from soft foam could survive a kid's abuse for weeks, even months at a time. But guns and arrow-launching cannons aren't particularly educational. So if you want your kids to learn a little something while they play, consider these foam Volta Racers which run on the power of the… » 4/09/13 5:20pm 4/09/13 5:20pm