The UP! personal 3D printer from China retails for $1500, with goop running at $50/kg. From this early adopter's review: It runs at 0.3mm resolution, and the finished models show striations from successive layers of goop, but light sanding produces a smooth finish. For objects with funny extrusions and sitcky-outie bits that aren't stable until they are fully printed, the printer calculates and adds support struts on the fly, and these have to be removed with a hobby knife after printing.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.