1Heat oven to 350°F (325°F for dark or nonstick pans). Place paper baking cup in each of 24 regular-size muffin cups.
2Make and bake cake mix as directed on box for 24 cupcakes. Cool in pans 10 minutes; remove from pans to cooling rack. Cool completely, about 30 minutes.
3In small bowl, tint 1/4 cup of the frosting with red food color to make pink frosting; set aside. Frost cupcakes with white frosting. For muzzle, spread 1/2 teaspoon pink frosting in small circle on each cupcake; add red baking bit for nose. For eyes, add brown baking bits. For ears, add white gumdrop halves, cut sides down. Place marshmallow halves on face for wool. Store covered.