3D Optical Illusions is neither hardware or gadget. It’s an magnificent eye-fooling art by Ara Peterson.
This 3D Optical Illusions art is a wicked repetitive multi-color illusions with certain patterns to make fun of our dumb eyes. The main material is a birch wood, laser-cut with acrylic color paints.
Can visit My Modern Metropolis for more image gallery, or you can visit Ara Peterson site for a little shock! 
(via NotCot)
Price Comparison
Also available in these stores (if any):
