GadgetMadness: We find the coolest gadgets first

Resembling the Audi Will Smith drove in "iRobot," the world's smallest hydrogen powered toy car uses hydrogen for fuel employing the same technology that auto companies are toying with to develop zero-emission vehicles. Like most alternative fuel cars it's more pricey than regular toy cars, and refueling takes about 10 minutes. If the price of batteries makes you see red then and traveling in a straight line for 325 feet for three minutes sounds like fun, then this is the car for you. That's right, no steering and no remote control in this model. To add to the silliness of this car, the fueling station uses a little solar panel as a catalyst for electrolysis or two AA batteries (not included.)

Hammacher