Think it all started with the Little Green Dragon from our very beginnings, but I could be wrong. Einstein’s face illusion was as effective, and afterwards much more examples followed. One of my favorites was the “Janek’s Nuts” video. Check them all out once you finish viewing the video below! Oh, and BTW I just started building our presence on the mighty Google+ social network, so be sure to join our channel if you already haven’t! You can find some cool illusion gifs there, ones that were little impractical to feature on this site…