There's something about big, noisy construction equipment that's irresistible to kids. If you have a child (or grandchild) who loves big machines, then this dump truck pedal car project is the perfect way to deliver an oversize load of fun with your next do-it-yourself project. Combining smooth pedal-power and a sturdy frame with a working steering mechanism and dump box, the dump truck was designed with 3- to 6-year-olds in mind. It requires two full sheets of plywood, a few pieces of dimensional lumber, two steel rods and two pieces of flat steel stock. Six wheels, screws and nails, a few assorted pieces of hardware and some paint round out the shopping list.