Update: J sez, "Over three years ago, a Somethingawful member, ignoramus, made an excellent, more traditional version of Chewbacca as Che.
Here's the forum page containing his picture as well as those made by other members.
Here is a direct link to the picture."
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.