Colorful Graffiti Machines

Although many people believe that graffiti is a defacement of public property, I can't help but think that it is simply an act of art; take the Robo Rainbow, for example. A harmless machine, it produces the perfect arc of color across buildings to inspire smiles and even a bit of playful imagination.

Presented as an 'Instrument of Mass Destruction,' the Robo Rainbow is quite the opposite. Instead, it constructively brings society together with just a robotic device attached to a bike.