Here's a recipe with action kids will love: It spurts green goop when cut!
2. Cut a smaller circle out of one cake to use as the head. Fill the hole left over with the gelatin.
3. Place the other layer on top and trim to shape.
4. To prepare frosting add blue food coloring to the chocolate frosting in a mixing bowl until black. Frost cake black. Then use the black licorice as legs and gumballs as eyes. NOTE: When you cut into the cake, it spurts green goop.