This a pretty awesome gadget, it’s called the SprayPrinter. You select an image through your smartphone, then attach it to a spraycan. Then just drag it along the wall, as it paints your picture one pixel at a time. It uses the smartphone to track the position of the spraycan.
The ‘SprayPrinter’ mobile app breaks an image down into pixels, calculates their exact position and tells the printer exactly when to open the valve.In addition to the product, there’s a platform that brings together artists and their customers and homeowners. This community enables artists and designers to upload their work and find customers all over the world.
If it works as well as it seems it sure is awesome.