2. Prepare cake following package directions. Divide batter into thirds and place in 3 different bowls. Add a few drops red food coloring to one. Add a few drops green food coloring to another. Stir each until well blended. Leave the third one plain. Spoon pink batter into ungreased 10-inch tube pan. Cover with white batter and top with green batter. Bake and cool following package directions.
3. To make cream cheese glaze, heat frosting in microwave at HIGH (100% power) 20 to 30 seconds. Do not overheat. Stir until smooth. Set aside 1/4 cup warm glaze. Spoon remaining glaze on top and sides of cake to completely cover. Divide remaining glaze in half and place in 2 different bowls. Add a few drops red food coloring to one. Add a few drops green food coloring to the other. Stir each until well blended. Using a teaspoon, drizzle green glaze around edge of cake so it will run down sides. Repeat with pink glaze.
Tip
For marble cake, drop batter by spoonfuls, alternating colors frequently.