I definitely want one of the Facadeprinter graffiti makers. I mean, how cool would that be, to create pixelated murals via a paintball-inspired machine. Of course, upon further reading, a special software controls the machine--but still, it's a very cool concept.
Conceived by product designers Martin Fussenegger and Michael Sebastian Haas, the Facadeprinter graffiti machine is, according to their site, a "large scale communication tool." Capable of firing five paintballs per second, these machines can communicate quite a lot in a short span of time.