The Man in the Coffee Beans
The "illusion" is that this is just a picture of coffee beans; but it is not. Can you find a man's face among the beans? Some say that if you find the man in 3 seconds or less, the right half of your brain may be more well developed than most.
(Colt found it in 3 seconds. I never could find it - I had to cheat)
http://kids.niehs.nih.gov/illusion/illusions.htm
