I remember those T-Shirt places, in a few malls, that had a video camera hooked up to a printer. It would print out your picture in ASCII for a buck or two. Early 80's stuff, but at the time, it was state of the art.
Whatever happened to Magic Eye pictures. You know, the 3d stuff? I remember seeing people, outside shops at malls, standing and staring at those things for hours. I guess some things deserve to be a fad.