Darth Vader Stormtrooper Mini LED and Sound Keychain

A small bit of inexpensive fun and a good way to explain solar power to your kids. Powered only by the sun it jumps into action whenever sunlight falls upon it.  Racing along the ground at an alarming speed only stopping when the sun goes or it runs into shade. It will race on most surfaces even lumpy tarmac, of course the smoother the surface the faster it will go. You can control the speed, stop & start by simply shading the car with your hand.