I always enjoy when things I love join forces. What would happen if you combined pointillism with a paintball gun and gave it to a digital artist to create graffiti? You'd get the Facadeprinter.
The Facadeprinter is a simple robot. It's purpose: printing huge artworks out of it's box onto the walls. Based on a digital artwork software controlled motors are placing an airpressure-marker to fire thousands of colorballs. So the artwork is growing dot by dot like the drawing of a magic pen. An inkjet-printer in architectonical dimensions.