Are you looking for an eco-friendly toy to hand out to your child? Well check these Renewable Energy Racers. The set includes 3 racers which can be powered by either a windmill, a solar panel or a hydrogren fuel cell.
The first two energy sources provide provide about 20 minutes of racing via 10 to 30 minute charging while the fuel cell only provides about 5 minutes of use.
But while all that has been bared, it seems that they are not spared as far as battery aid is concerned. They need 6 AA batteries which are used to power the remotes. They are available at Hammacher Schlemmer for $89.95.