Prepare cake using firm-textured batter such as pound cake. Fill prepared pan, bake without core at 325ºF for 90 minutes. Cool completely. Position cake on prepared board. Trim off ears, feet, arms and muzzle. Lightly ice cake. Use toothpick to trace face outline and mark 1 in. wide stripes on body. Pipe tip 3 outline mouth and dot eyes, tip 5 dot nose (smooth nose and eyes with finger dipped in cornstarch). Cover head and body with tip 16 stars. Overpipe cheeks with tip 16 stars. Insert prepared dowel rods 1/2 in. deep in hands and feet; secure with icing. Insert other end 2 1/2 in. deep in cake. Insert prepared lollipop sticks into antenna balls, then into cake. Insert wings, large side up, into back of cake. Insert plain lollipop stick into head to support hat; position hat; position birthday cake.
Combine Lemon Yellow with Golden Yellow for yellow shown. Combine Violet with Rose for violet shade shown.