2-3 days in advance: Prepare base board. Tint 60 oz. fondant yellow, set aside. Wrap foamcore board with foil; brush with piping gel. Roll out fondant 1/8 in. thick and slightly larger than board.
Cover board with fondant; smooth with Fondant Smoother. Cut edges with pastry wheel and use smoother to smooth out sides and edges of board. Let dry 2-3 days.
Bake and cool Animal Crackers, 2 Mini Wonder Mold and smallest oval cakes. Cut mini cakes vertically in half for paws. Cut cake boards to fit assembled cakes; position cakes, securing with buttercream. With tip 4, outline and pipe in inside ears, eyes, nose and mouth (smooth with finger dipped in cornstarch). Cover cakes with tip 16 stars. Pipe tip 16 zigzag hem on shirt. Pipe tip 4 number.
The star tip creates the most celebrated, easily accomplished decorations! The serrated edges of the star tip make ridges in the icing as you squeeze it out. Because fill in requires so much piping from the same bag, keep replenishing icing in bag.