I don't think I ever had a toy I enjoyed more than the Magnajector. It was a simple opaque projector made of rather attractive Bakelite. Inside was a light bulb and a mirror. You plugged in your Magnajector and whatever you put it on top of was projected on the wall.
Somewhere around age nine, I used mine to make a series of cartoons starring a dog character I named Daniel Bone. Actually, "cartoons" is way overstating things since even crude animation was not possible. They were more like unlettered comic books projected one panel at a time, with me doing the voices live for whatever friends or parents I could drag into a dark room. Later, I learned I could trace drawings with it, and a friend of mine named Carl invented a usage for his that I'll divulge in a moment. But I recently came across a picture of a Magnajector and couldn't resist sharing it with you.