The one on the left is mine, and the one on the right is from my roommate  bluefire. We both used pre-made templates for the fronts. The text is being projected on the wall by patterns cut into the backs :3

Very few people do rear-projecting pumpkins, but it's such an awesome way to make your pumpkins so much better than normal jack-o-lanterns! Just carve whatever you want to appear on the wall on the back side (mirrored, of course).