A media group in Berlin has created the VR/Urban SMSlingshot. A high-tech slingshot, it essentially tags walls with digital graffiti. All it requires is an inputted message via the embedded keypad and a strong arm.
The VR/Urban SMSlingshot then slings that message onto walls with the help of colorful lasers. According to the designers, it will not only spread information but link "digital data with people acting in urban (real) space."
More Stats +/-
24 Sweet Launchers, Blasters and Small Cannons
Giant Slingshot: New Way to Space?
Digital Graffiti Art