A fan of the videogame Katamari Damacy had these checks made (or did he just design them?) that bear a variety of cool Katamari graphics and the legend: "HELLO I AM A CHECK PLZ CASH ME LOL/KATAMARI DO YOUR BEST" JPEG Link (Thanks, Will!)
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.