Mandelfish!

[garote]

Fishies inside the Mandelbrot set!

Every OS X user will enjoy Mandelbrot on Cocoa.

Also, a completely unrelated quote:

"Games like Grand Theft Auto are as much 'murder trainers' as whack-a-mole is a trainer for a job in pest extermination.  Though on the other hand every time I see a burrowing rodent I am oddly compelled to bash its head in with a mallet."