This Renewable Energy Racing Set has palm sized remote controlled vehicles that are entirely powered by mini-renewable energy powerplants. There’s a miniature windmill, a solar panel and a hydrogen fuel cell which can each provide power for the cars. In a pinch the remotes (which take AA batteries) can be used to quickly charge the cars too. It’s a pretty cool combination of green science and fun. Buy it for $89.95 at Hammacher.
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