http://www.skytopia.com/project/illusion/illusion.html

I know, I know. “Optical illusions?! We’ve seen this crap already, Dick!” Well trust me on this one. This page is one of the best I’ve seen on optical illusions. They’ve even invented a few of their own.
WARNING: Enter only if you don’t mind some cream in your jeans…


This is the “Eclipse of Mars” Stare at it you pussy; for at least a minute, and slowly pull your head away from it. It will glow the most brilliant Cyan you’ve ever seen.