The Grafitti Research Lab, a division of the Eyebeam R&D Open Lab, is demonstrating an early prototype Electro-Graf on the Eyebeam facade as part of its research and development in experimental creative technologies for grafitti writers. The prototype Electro-Graf consists of conductive and magnetic paint that electrically drive and mechanically control over 20 white and red LEDs. Viewers walking by on the street can interact with the piece by removing and repositioning the LEDs on the wall, creating their own patterns with color, location and luminocity. Come by Eyebeam to take part.