Noah Scalin sez, "Just look at this awesome steampunky rocket ring created by Herbert Hoover (not the former president) for his Ring-A-Day project. He also has a laser-cut miniature wooden version for sale on his Etsy page as well."
I'm partial to Hoover's espresso ring, too.
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.