Bake and cool cake using firm-textured batter such as pound cake. Place on wrapped board; position on wrapped craft block. Trim off top of car. Using melted candy, attach tires to cake sides. Using buttercream, ice passenger area smooth. Use tip 4 to outline car details; cover with tip 16 stars, overpiping wheel wells for dimension. Add tip 12 headlights and hubcaps (pat smooth with finger dipped in cornstarch). Pipe tip 2A outline bumpers and running boards (pat smooth). Cut lollipop stick to 7 in. Using melted candy, attach stick to back of cookie head, leaving 2 in. extended above head; insert in cake top. Position jelly ring steering wheel. Using buttercream, pipe tip 12 outline arms, tip 5 pull-out fingers and tip 3 outline shirt. Insert windshield; cover with tip 16 stars. Cut sugar cone to 3 in. for hat; ice smooth. Slip hat over extended stick on top of head and attach with melted candy. Use tip 3 and buttercream to pipe outline number, pull-out pompom and brim. Position baby blocks and rocking
horse behind head.