Roll out cookie dough. Trace firefighter pattern with toothpick and cut out with craft knife. Cut dog with cutter. Bake and cool cookies. On dog, using tip 3, pipe in spots, features and fur (smooth with finger dipped in cornstarch), outline mouth and toes. Trace details on firefighter with toothpick; outline with tip 3. Pipe in mouth, tongue, emblem and inside helmet (smooth with finger dipped in cornstarch). Cover helmet, face, body, shoes and hands with tip 16 stars. Pipe tip 3 string eyes and ears; pipe dot nose and cheeks; print letters on emblem. Pipe tip 16 pull-out star hair. Outline and pipe in steering wheel with tip 3.