Wii-Spray - Graffiti controller?

For part of his final thesis at Bauhaus-University in Weimar, German, Martin Lihs built the Wiispray, a reconstructed Wiimote controller hacked into a spray-paint can -- graffiti-games ahoy!

Although still early in the development process, it suggests another type of game platform and a fresh twist on the tired “art” app. The success of custom controllers for specific titles suggests that gamers are interested in a more realistic interaction than permitted by a standard joypad. Lihs plans to integrate a communal wall for collaborative graffiti in the eventual software title, that would allow ‘players’ to work on the same art project.

Others claim to that they have completed such a spray-can controller for the Wii-platform.
We don't know who created it first, the fact is that using real spray-paint has no digital equal.