The latest animated business-card from Cardnetics is this card with a built-in irising mechanism. The card is available as a finished product, a kit, or a Thingiverse object to download and cut yourself. It's also available in other sizes, including greeting-cards.
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.