Video made by Brusspup features some animated optical illusions created when a template of simple black bars printed on transparent film is slid across specially designed images. These optical illusions are just brilliant and it will make your brain tangle, Brusspup was kind enough to provide links to the template and hi-res images so you can print these out yourself.
Here are the instructions:
Below are links to the images found in this video so you can print them out and try it yourself. You’ll have to print the template onto a transparency. If you have an ink jet printer you have to use a special transparency made specifically for ink jet printers. When you print the images and the template make sure to print them all at the same size if any of the sizes change the effect will not work.
Image 1: http://i.imgur.com/aV2BNeU.jpg
Image 2: http://i.imgur.com/NyKjc83.jpg
Image 3: http://i.imgur.com/MXJchLj.jpg
Image 4: http://i.imgur.com/b2Ffg4f.jpg
Image 5: http://i.imgur.com/z4dOj7r.jpg
Image 6: http://i.imgur.com/uuSOjV9.jpg