Arrange cupcakes on large serving platter or tray to resemble a witch's head as shown in diagram
. Spread with frosting. Use decorating gel to outline the mouth and hat on the cupcakes. Finely crush 11 of the cookies; sprinkle inside mouth and hat. Cut remaining cookie crosswise in half; place on cupcakes for eyes. Place marshmallows in mouth for teeth. Arrange licorice to resemble eyebrows and nose. Store in refrigerator.