• Does the inability to see the number "82," in the picture below, upset you?
If you answered yes to either of these questions, then you fell for some of the world's worst optical illusions!
I saw these, and some other hilariously fake optical illusions, here:
To make up for those trick illusions, here is a cool video by Young Rival that is a motion stereograph. When you re-focus your eyes, as shown in the beginning of the video, a 3D image appears within the seemingly random visual noise. These autostereogram images were popularized in the 90's, in Magic Eye posters & books.
Young Rival also made this entertaining video that I came across awhile back, featuring the amazing face-painting skills of James Kuhn: