Bake and cool 2-layer cake. Ice smooth in white. For cake side rounds, cut nine large and 12 small circles in all colors using punch with Layered Circles Cutting Inserts. Place under storage board flap until ready to assemble.
Attach circles to cake sides in random order with piping gel, overlapping and trimming as needed. For cake top lollipops, cut two circles each in light yellow, red and light green using punch with large Layered Circles Insert. Sandwich over top 1 1/2 in. of lollipop stick; brush with piping gel to secure. Insert lollipops.