Fun with a 4 X 6 Photograph
Make a 4 X 6 photograph. Turn it over and you have a postcard ready for the post office to hand stamp and mail. This is also a fun activity for a camera club or group of photographers to share images via what we now call "snail mail". Probably all modern digital photographers e-mail photographs to each other all the time, but with this activity even film shooters can get into the fun.