These two images of circular snakes are great examples of optical illusions.
The snakes in the images appear to rotate while both are actually static image.
- Gadgets: Einstein Hollow Face Illusion
UK shop Grand Illusions that provides all sorts of illusion gadgets has an object called “The Einstein Hollow Face Illusion.” This is one of the most amazing optical illusions we have seen. Watch the video on their web site to see it how it works. The image follows you as you move around the room.