Vegas 3D Parallel Stereogram
I make a 3D photo of this that you need those funky blue & red glasses. Much later I wondered if I could make one of those where you look crosseyed at both photos and make it 3D. It actually worked and is kinda cool. Crosseyed might not work, you might have to go the other way with your eyes, like those magic eye things where if you relax your eyes you see something appear.