Now that playing games on buildings has become passé and controlling mannequins wasn't as exciting as we hoped it would be, we are back on the hunt for other things to take command of with our cellphones. For the third year running, interactive designer Mads Wahlberg has brought the Mega Plotter installation to the Skanderborg Festival. The installation is a set-up of red, green, blue and yellow spray guns on a cellphone controlled X-Y plotter in front of a 16 x 23-feet canvas. Once users dial into a specific number, they can use their keypad to choose colors and move the plotter up, down, left, right, and diagonally to create their own renditions of their fave Bansky pieces.