Evolvotron is interactive "generative art" software to evolve images/textures/patterns through an iterative process of random mutation and user-selection driven evolution. Generated pictures can be saved at different resolutions and used as desktop picture, etc. (you name it). If you like lava-lamps, and still think the Mandelbrot set is cool, this could be the software for you.
Mac OS X 10.3,
Mac OS X 10.3.9,
Mac OS X 10.4 PPC
||The Qt4 framework is required and must be
installed separately; try a "Framework only" install from http://qt.nokia.com/downloads
(NB Qt is NOT QuickTime!)