Now go outside and look at the sky.
Extreme Photo Constructions
David hosts some of the best 3D anaglyphs of the Mars Rover pictures that I have seen up to now, but he has also been doing amazing things by combining still images from old movies to create new pseudo-3D anaglyphs - he is creating 3D pictures from 2D movies!
He calls this technique Dual Moment Stereo, and if you are at all interested in 3D anaglyphs, then take a look at his Pearl Harbor images... there is a huge amount of old films that can be harvested for 3D imagery in this way.
I'm tempted to go to the Prelinger Archives right now and see if I can do this myself!