Patches bobs to look like the title character from the movie, The Crow. Basically just puts a black-and-white face mask on bob. A pretty complete patch, as far as it goes... the dead bob still has the mask. Hard to see from a distance.
A package with a shapes patch, a sounds patch, and a physics model to give you the chainsaw from Doom. Not having ever played Doom (yes, I admit it), I can't say how faithful the reproduction is, but it looks and works pretty well.