Best optical Illusion..evar.

I'm a huge fan of optical illusions.  There are thousands of fun ones especially the ones where colors change and some you see weird effects with the eye.

Video: http://www.youtube.com/watch?v=7knnO4vKgXg But this one below takes the cake!  Awesome.

Video:

http://www.youtube.com/watch?v=8mS5RK0Yo6w