The night before, I popped a bag of popcorn. I seperated the popcorn into 4 different piles. I took four seperate plastic grocery bags and put each pile in a bag. I then added red paint to one bag, orange to another, yellow and then brown. I then twisted the grocery bag at the top and shook! The paint got all over the popcorn. I then laid each pile of popcorn onto newspaper to dry overnight (although I think wax paper would work better).
The next day, the kids were really amazed at the different color popcorn and were so excited that they got to glue it on their corn. I got the corn cut out from http://www.makinglearningfun.com