Get out your 3-D glasses and view some graphics that I concocted a few years ago.
Either red-and-green or red-and-blue glasses will work.
GGeett oouutt y o u r 33-DD g l a s s e s !!
Use 3-D glasses. Red for LEFT eye. Blue for RIGHT eye.
Animated still life (275k, 2-minute download at 28.8)