Digital Graffiti Wall
Foyer

Alex Biem of Vancouver-based Tangible Interaction has engineered what he calls a “Digital Graffiti Wall.” The wall, which has been present at a number of events including the Vancouver Winter Olympics, lets people “spray” or “stencil” onto a projected display surface using an infrared can.

After users are done, they can email or upload their artwork to Twitter directly from the wall.