RainbowDepth 3D Glasses

Glasses create striking 3D images from normal 2D images by pulling forward the color red to the foreground and sorting the remaining colors according to their position in the rainbow. Encourages fantastic 3D illusions without compromising the quality of the image when viewed without the glasses. View 3D images in film, video, television, computer graphics, artwork and more. Unlike the traditional 3D process that requires two images, RainbowDepth information is encoded from a single image through the use of binary optics and color. Glasses are black cardboard.

Check out this art project made for viewing with 3D glasses:
Sanded-Paper 3D Ocean Drawings