We’ve never seen a slingshot like this before. This slingshot looks like a typical primitive weapon, but that isn’t what it is all about. Hence the alphanumeric keypad. It will instead tag a building (or several) through the use of SMS.
This digital slingshot was designed by a media group in Berlin. Just type in a message, aim it at a building at fire. Your message will then splatter all over the building. The slingshot is equipped with Arduino, a laser, communications radio and keypad, it truly interacts with the projection system. So your aim matters. Video here.