Decorate cookies. Use black icing pouch with round tip to pipe dot eyes and inside of mouth. Use white icing pouch with toothpick to add highlight on eyes. Use red icing pouch with round tip to pipe outline mouth, dot nose and fill in hat. Use spatula to smooth hat area. Pat nose slightly flat, using finger dipped in cornstarch. Use white icing pouch with star tip to pipe zigzag hat trim, hair and beard. Use white icing with round tip to attach mustache cookie to face cookie. Use white icing pouch with star tip to pipe elongated shell mustache and rosette pompom.