1 18 1/4 ounce box cake mix
1 16 ounce can vanilla frosting
1 12 ounce can whipped vanilla frosting
Blue icing color
Green icing color
Pink icing color
Purple icing color
Yellow icing color
1. Prepare cake mix according to directions for two 8-inch round cakes. Frost entire cake with vanilla frosting.
2. Divide whipped frosting among 5 bowls. Color each with an icing color. Transfer to resealable plastic bags. Microwave 10 seconds or until just warmed. Cut off one corner of bag and shake over cake in a random pattern. Repeat with remaining colors.