1. A system for producing and viewing a three-dimensional image comprising, the system comprising: a two-dimensional substrate comprising a preprinted image having a number of blank regions and black lines adjacent at least one of the blank regions, wherein the blank regions are filled in by a user with one of two different colors such that a first blank region comprises a first color and a second blank region comprises a second color; and a stereoscopic viewer for viewing the substrate and perceiving a three-dimensional image from the two-dimensional substrate.