For anyone who may not have seen this yet, it is incredible; give it a watch. This project is by Dentsu London, who is also responsible for the recent “Making Future Magic: iPad light painting” which was also a great watch. Linden Gledhill, the artist behind the idea, has a great Flickr page with some mind-blowing stills of the project as well. The first two videos are final products that helped promote the new Canon Pixma line of printers. The third is a look behind the scenes.