Gaming: Suck At Mario Kart? Build a Training Wheel in a Few Easy Steps
http://gizmodo.com/392527/suck-at-mario-kart-build-a-training-wheel-in-a-few-easy-steps
"Using only a couple of 36-inch bungie cords and a plastic crate you can build what is essentially a traning wheel for the game that helps beginners settle down with the wiimote and master the basic steering movements."