Why go through the trouble of having a kid who will draw all over your walls when a robot can do it for you? Basically the Muralizer hangs on a string and automatically draws whatever design you choose on your wall.

Just plug it into your computer and load it up with vector art, hang it on a string on the surface you want to draw on, and let it get to work. If it’s sold as a kit, and hopefully it will be, it will cost a few hundred bucks and will require some soldering.

[Gizmodo]