Ice 2-layer cakes smooth (for 18 in. cake, bake four 2 in. high half rounds to make a 4 in. high cake). Prepare cakes for
Stacked Construction To make towers which will be inserted into cakes more stable, attach Plastic Dowel Rods to bottom of towers as follows: For 4 large and 2 medium towers in 18 in. cake, cut dowel rods to height of cake; for 4 small towers and 1 medium tower in hexagon and round cakes, cut dowel rods 1 in. shorter than height of cake. Stand towers upside down; attach cut dowel rod to base with melted candy. Refrigerate until firm. Attach turret peaks to towers. Assemble cakes. Insert plastic windows on 6 in. and hexagon cakes 1 1/2 in. from base of cake. Insert door and position main roof. Using buttercream icing, pipe tip 4 bead hearts above windows. With tip 3, outline windows and pipe double drop strings. Attach tip 225 flowers with dots of icing; add tip 349 leaves. Insert 1 medium and 2 small towers in 6 in. cake; decorate towers with buttercream. With tip 3, outline windows and pipe double drop strings. Pipe tip 4 bead hearts above
windows. Attach tip 225 flowers to windowsills with dots of icing; add tip 349 leaves. Attach tip 225 drop flowers to battlements and in a cascade from top of turret peaks; add tip 349 leaves. Pipe tip 16 rosette on turret peaks; insert royal icing hearts. Position tip 225 drop flowers around bottom of towers and on top and bottom borders. Insert 2 small towers in hexagon cake; decorate same as towers in 6 in. cake. Attach tip 225 drop flowers around door, main roof and top border of cake. Pipe tip 349 leaves.