Piccolo’s Tiny “$70” CNC Plotter
It doesn’t look like these are for sale yet, but you can register you email on their mailing list to find out when you can get one.
From the Piccolo.cc website: Piccolo is a pocket-sized stand-alone CNC platform. For under $70, you will be able to assemble your personal Arduino-compatible kit for tinkering, and playing with basic CNC output. Be it plotting a quick graffiti, printing a one-off business card on the fly, or multiple Piccolos working together to create a large mural, this kit provides a platform for experimenting with 2D or 3D digital fabrication at a small scale.