I was in a rush to put it together after work in time for the event, but basically, it’s black construction paper for ears, white poster board for eyes (black construction paper irises), poster-board for teeth, and two red plastic table cloths for the inside of the mouth and the tongue. I used a piece of the table cloth taped around my work light to give the red glow from the mouth. It looked better than the picture can show.
The event was a huge hit, and a lot of kids showed up. We were out of candy in about 45 minutes. Thanks to our zebra-Jeep neighbors, we were able to replenish for another 30 minutes.