http://www.cse.nau.edu/~pab/Stereograms/stereograms.html
Paul's Stereograms Page offers a collection of SIRDS (Single Image Random Dot Stereograms) images. Visitors to this page will find a directory of images in GIF and other formats, as well as information on how SIRDS images work. There are also pointers to information on ASCII (text) SIRDS, as well as material on creating your own SIRDS at home with a camera.