Children will wind up the toy and watch as the Rube-Goldberg interior turns mechanical energy into explosive hydrogen-powered fun!
The toy is based on the principles of electric generators, electrolysis, and piston-powered engines.
The toy itself will be very durable, made of sturdy plastics and lightweight metals. It will be extremely expensive and unsafe; the cost of the components will likely be in the triple-figure range, while the car itself will be host to tiny explosions (those needed to power the single-piston engine). On the bright side, it would take extreme measures to produce any sort of harmful explosion, as the volume of water necessary to produce a sizeable explosion is larger than the volume of the entire toy.