Giant "Inkjet Printer"

mustrum_ridcully writes "For all you who don't like the cost of inkjet printers how about this printer that uses spray paint (courtesy of bbc news ). Ok it's not exactly what you'd call compact, but perfect for the lazy or wannabe graffiti artist." Having just finished doing a bunch of painting in my house, I'd like to have one of those machines drop down over my house, and paint via program - maybe I can use as GBA SP as the control device.