In advance: Prepare and roll out cookie dough. Cut heads using Witch and Frankenstein cutters from 18 Pc. Set. Cut cat using cutter from Mini Set. Bake and cool cookies. Also: Decorate cookies with royal icing. Ice face areas smooth. Pipe tip 4 dots for whites of eyes. Use tip 3 to overpipe eyelids, add outline ears and pipe dot nose and cheeks. Use tip 2 to pipe dot pupils, zigzag mouth and eyebrows. Finish bride with tip 4 zigzag hair. For witch's hat, outline and pipe in brim and top with tip 6 (smooth with finger dipped in cornstarch). Pipe tip 4 outline band and tip 3 buckle. Finish with tip 3 outline hair and tip 2 tooth. For cat, ice smooth then outline with tip 2; pipe tip 1 line and dot features. Let cookies dry. And: Attach cookie sticks to back of heads with royal icing. Let dry.
Bake and cool mini cake bodies. Spatula ice cakes. Cut stick candy to 4 in. long; insert into cake sides for arms, leaving 2 in. exposed. Pipe on icing for sleeves with tip 10; smooth with spatula to cover. Cut spearmint leaves to shape hands; dip in granulated sugar to seal cut edges. Attach with icing. Pipe tip 3 zigzag cuffs. Insert cookie heads; trim cookie sticks as needed. Attach cat to witch.
* Combine Leaf Green with Lemon Yellow for green shown. For Black, begin with chocolate icing so less color is required.