CrunchBang Ninja!
There has been a bit of a Ninja-meme going on in the CrunchBang Linux Artwork forum. Richard Querin had the inspiration to turn the #! logo into a cartoon Ninja. He later went on to refine the design.
You can see my take above (and find an earlier version on the forums). I used a somewhat modified version of the free Osaka font.
EDIT: You can download this wallpaper, including the source SVG at http://drop.io/crunchbang - along with a few other goodies.
