Drive a car, the car avance is you shout in a micro (if you don't have micro up and down works fine).
Bonus if you have a Wiichuck controller and a Arduino.
This version also work with a num-chuck and an arduino. Please uncomment the line in the pde file.
I use the article from Lou's Pseudo-3d Page I have ported the RacerJs in processing. I also use the graphics. The original code is MIT Licence and Creative-Common for the art.
for connect the wii-chuck and arduino you only need four wires exemple here http://forum.kerbalspaceprogram.com/entries/728-KSP-Chuck-The-KSP-controller-with-style-%29
The original javascript code is MIT. I don't care much about my part.