Bake and cool 1-layer 8 and 10 in. cakes (2 in. high) and 2-layer 6 in. cake (3 in. high). Ice smooth in buttercream and position on cake stand. Bake and cool mini wonder mold cake; ice smooth in brown, top lava area in white. Trace cloud pattern on white paper and write message with marker; cut out and tape to lollipop stick, leaving 4 1/2 in. extended at bottom. Tint piping gel; using cut bag, pipe over top of wonder mold cake. Position on 6 in. cake. Insert cloud, trees and dinosaurs in cake. Position toppers. Pipe tip 16 pull-out grass bottom borders and on cake tops.
*Combine Violet, Rose with Black for violet shade shown. Combine Lemon Yellow with Golden Yellow for yellow shade shown. Combine Leaf Green with Lemon Yellow for green shade shown. Combine Brown with Red-Red for brown shade shown. Combine Red-Red with Orange for orange lava shown.