Have you always wanted to leave your mark on buildings, box cars, and overpasses but were too self-conscious of your non-existent graffiti skills? The SprayPrinter is a clip-on accessory that turns cans of spray paint into handheld dot matrix printers that can perfectly reproduce almost any design.
The hardware is actually made of two key components: the SprayPrinter can attachment that controls the nozzle, releasing tiny blasts of paint to build up an image pixel by pixel, and a smartphone that converts and sends images to the SprayPrinter, but also uses its camera to track the position of the device of all times so it knows exactly when to tell it to release the dots of paint.
via Gizmodo
