Spoon frosting into medium microwavable bowl. Microwave on HIGH 20 to 30 seconds, stirring every 10 seconds. (Frosting should be a pourable consistency.)
Dip tops of cupcakes into frosting. Let stand 10 minutes or until frosting is dried.
Mix 1/2 teaspoon of the vanilla and red food color in small bowl. Mix remaining 1/2 teaspoon vanilla and black food color in another small bowl.
For the ladybug body, paint cupcake with red food color mixture using a small clean paint brush. Paint black dots with black food color mixture. For the ladybug head, press a cookie half, creme-side down, on each cupcake. Attach 2 pieces of licorice near the top of the head for the antennae. Use leftover frosting to attach 2 marshmallows, cut-side down, to the cookie for the eyes. Paint a dot on each marshmallow with black food color mixture to complete the eyes.