On the second easel I taped a piece of clear contact paper (sticky side out) for the base of the collage. Then I filled the tray with materials such as paper, cotton balls, and feathers and showed the children how they stick to the paper.
Colorful Paper Prints Using Shaving Cream & Food Coloring! I made these cute thank you notes doing this - easy, fun and frugal! You could make homemade Chirstmas cards this way - maybe with just green and red food coloring!