BUILD YOUR OWN CARS Here are eight fun models to make from easily available bits and pieces, and things you usually throw away. Some have tiny motors, others just power up with a twisted elastic band! Simple step-by-step instructions and clear photographs show you how to construct a car from a football or two drinks cans (that one’s eco-friendly electric!), make a high-powered dragster, get a mousetrap whizzing along, and more.