This was as­sem­bled from the print­ed di­a­gram at http://jclahr.com/sci­ence/Il­lu­sions/3d/drag­on.jpg . If I did the film­ing okay, the ef­fect should be wicked cool. If not, try to re­fo­cus your eyes and look again. (And yes, I made my drag­on pur­ple. I like pur­ple!)

I was al­so re­cent­ly in­formed that you can down­load and print the same drag­on from http://www.grand-​il­lu­sions.com/op­ti­calil­lu­sio ns/three­_­drag­ons/ . I DEF­I­NITE­LY didn't de­sign this, I just print­ed it out and filmed it re­al­ly fast to see if I could get the prop­er ef­fect. :)