Tony Quan was a graffiti artist before he became completely paralyzed.
Except for his eye movements that is.
http://www.vimeo.com/6376466
Enter the EyeWriter, a project that uses simple available hardware (such as a webcam) to map the user’s eye movements and translate it to computer commands, such as a paint-like program that enables Tony Quan to create graffiti once again!
Check more about The Eyewriter at it’s official webpage!

Source: Gizmodo