This may look a bit strange . . . staring at an image through two pinholes cut into business cards . . . but it is worth a go . . . see 3-DVG Home Page:

This site will expose you to a novel 2-D to 3-D visual display process that creates a surprising and stunning 3-D stereoscopic display from ordinary two-dimensional color photographs printed in any magazine. The fun part about this process, called the 3-DVG effect, is that a major portion of it, once learned, can be implemented using only your fingers. And the super good new is that you are possibly no more than fifteen minutes away from actually experiencing this new visual phenomenon.

Give it a go and let us know your results here. Learn something new everyday. It isn’t really full stereoscopic effect but a form of psuedostereo 3D which is worth playing around with to demonstrate how vision and depth perception can be altered. Interesting.