Bake and cool Darth Vader and half round cakes (bake four 2 in. high layers, for a 4 in. high round cake). Position round cake on foil-wrapped base board; prepare and cover with 140 oz. fondant tinted navy blue. Prepare for stacked construction.

Decorate Darth Vader cake. Ice inside helmet smooth. Use tip 3 to outline and pipe in eyes, eye details and inside chin. Pat smooth with finger dipped in cornstarch. Use tip 6 to pipe outlines on mouth in black, overpipe with tip 6 outlines in light blue. Use tip 4 to pipe white helmet details and blue eyebrows. Follow pattern to cover remainder of cake with tip 16 stars and tip 13 stars for tight areas in colors shown. Position on round cake.

For message, roll out red fondant 1/8 in. thick. Cut out message with desired cutters from set. Attach letters to cake with damp brush.

For bottom border, roll 3/4 in. red fondant balls; position on base board, securing to cake side with thinned fondant adhesive. Pipe tip 2 swirls on balls.