John mentioned this mosaic program during EdTechWeekly last night. AndreaMosaic is free. You provide the program a directory of your pictures and one target image. Above is something I created today. I pointed AM to the folder with our pictures from Disney’s Magic Kingdom. As the target, I found a GIF of Mickey Mouse. The program went to work and in a few minutes created a collage (click picture for higher resolution) of our Disney pictures in the shape of that famous mouse.
The big question is whether or not my image is a violation of copyright law. I know the image of Mickey Mouse is protected by the Sonny Bono Copyright Term Extension Act. But what about my pictures arranged in the shape of Mickey?