In advance: Make Sugar Sheets! topper. Use punch with Layered Circles Cutting Insert to cut four large circles (two light green, two light blue) and five small circles (three light green, two light blue). Build topper by overlapping circles and securing with piping gel. Let dry on waxed paper-covered board. Attach two lollipop sticks to back using piping gel; allow 4 in. of stick to extend at bottom to insert into cake. Let dry.
Bake and cool 2-layer cakes. Ice smooth. Prepare for
Stacked Construction. Use punch with Layered Circles Cutting Inserts to cut 22 large circles (10 light green, 12 bright blue) and 28 small circles (16 light green, 12 light blue). Brush backs with piping gel and attach to cake sides, layering some circles, overlapping others, and trimming as needed. Insert topper. Pipe tip 6 bead bottom borders.