Twig Case Co. in Minnesota makes nice iPhone cases out of paper and bamboo, including this beautiful Jim Woodring model, called "Frank in the Tempest."
The founder of Twig Case, Jon Lucca, is an illustrator, too, and I really like his art on "The Bunker" bamboo case. I saw a little easter egg in it that made me smile! (Click thumbnail for enlargement.)
(UPDATE: use the code 'boingboing' and get 20% off anything until the end of the month.)
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. His new book is Maker Dad: Lunch Box Guitars, Antigravity Jars, and 22 Other Incredibly Cool Father-Daughter DIY Projects