Interesting use for the Wii- mote (the controller for the game system Wii), to allow a significantly impaired wheelchair user draw electronically. Basically, the Wii mote works by tracking the movement of the hand held controler in relation to the tv set top box. In this example, one half of the Wii is strapped to the wheel chair and allows the user to move the chair around the floor as though they were painting, while their track is "drawn" on a screen.
There is a short article, and some videos. I have included one below, but it makes more sense once you read the articles and arrangement of technology.
Great use of existing technology. The designer notes that it allows individuals with significant mobility impairments the ability to express themselves artistically.
Digital Wheel Art from Young Hyun Chung on Vimeo.