1Heat oven to 350°F. Grease bottoms only of 2 (8-inch) round cake pans with shortening or cooking spray. Make cake batter as directed on box--except add almond extract and 4 drops red or blue food color with the water. Bake as directed on box for 8-inch rounds.
2Cool 10 minutes. Run knife around sides of pans to loosen cakes; remove from pans to cooling rack. Cool completely, about 1 hour.
3On serving plate, place 1 cake layer, bottom side up. Spread with 1/2 cup white frosting. Top with second layer. Frost side and top of cake.
4Pipe decorating icing around bottom and top of cake using border tip and pink or blue icing. Use yellow cupcake icing to make baby pacifier and hair. Use desired decorating icing to make face and hair bow. Place marshmallow half over yellow icing to complete baby pacifier. Store loosely covered at room temperature.