If you’re like me, you saw the shelf-based Dock for Mac OS X Leopard and thought … hey, I could put some heads in a jar on that! And now you can, thanks to the Futurama “Heads in Jarks” icons from Icon Factory.
The icons are available for Windows as well as Mac. They’ve got a bunch of others as well, including one for The Crew, The Humans, The Aliens, and The Robots.