All you need is a photo and Photoshop. Obviously you need a pair of 3-D glasses. Where do you get hold of a pair? Well, next time a pair is included in a popular science magazine or something, I'll buy the magazine just to get the glasses.
Anyway, this NASA JPL article explains how to do the Photoshop bit. It doesn't look very hard to do. First I just need to get a pair of glasses.