VERY cool optical illusion!

OK, so what if everyone else on the blogosphere is linking to this - I'm going to go with the herd here, because this is just so darn cool!

The site features a little paper cutout dragon, whose neck appears to twist and turn to follow you around the room. You can watch the video there to see it in action, and then download a printable plan for making your own little full-color dragon.

Remember, the illusion is a variation on the "hollow face" optical illusion, so be sure to fold his head "inside out" when you put him together - I thought I was following the instructions, but did it the "intuitive" way, so it didn't work until I did it the way I wasn't expecting.

Also, in order for the illusion to work, you need to close one eye. It's part of how your brain reads depth into things it recognizes, like a face or a head. When both of your eyes are open, your stereo vision reveals the illusion plainly, and your brain isn't fooled for a moment. But once that eye closes... wow! It's hard not to be tricked.