How is this brain puzzle possible?! HOW TO MAKE: http://www.instructables.com/id/The-Confuzzle/ MUSIC: http://www.soundsnap.com/node/83748 Shady Optical Illusion 2: Crazy Diamonds http://www.youtube.com/watch?v=xl1lLze5ZpM Shady Optical Illusion http://www.youtube.com/watch?v=fJ2eUXxK2iU Many more science and "confuzzling" optical illusion videos: http://www.youtube.com/greeenpro2009 amazing "