"PixelRoller is a paint roller that paints pixels, designed as a rapid response printing tool specifically to print digital information such as imagery or text onto a great range of surfaces. The content is applied in continuous strokes by the user. PixelRoller can be seen as a handheld “printer”, based around the ergonomics of a paintroller, that lets you create the images by your own hand."

Link: PixelRoller
(originally posted by tim)