Combine: 1 bottle of Elmer's white glue; 1/2 cup to 1 cup foam shaving cream; a few drops of contact solution (optional, but helps reduce stickiness); food coloring (optional). Make borax solution (1 cup of warm water mixed with 1 teaspoon borax). Add borax solution to glue mix 1 teaspoon at a time, until mixture forms a clump in bowl. Knead until it forms the desired consistency. Store in a covered container.

Recipe from Artfulparent.com