The current issue of MAKE Magazine (a personal favorite) has a feature article on home-built go-karts and backyard racers ( Roll Your Own ). Fun-packed home made creativity and fun with tools, many of us had these as a kid, either motor or pedal powered. Deep back in the dark dank crevices of my memory I can recall some kind of wooden gravity car that me and my dad worked on and I test-piloted down the hill in front of my house as a young boy. Whether it was the fact that it probably had no brakes, or possibly that the moving mammoth American cars of the 70's that I had to dodge in the middle of the street had no brakes, the cart didn't last long and I quickly moved on to safer activities, like skateboarding. MAKE covers some great ideas, gives some detailed build-plans and parts lists for making some awesome motorized fun. Making the stuff was half the fun. Riding and crashing it was the other half of the fun. And of course, back then, no one wore helmets while doing this kin