Personalized Pink Superhero 1st Birthday Baby Bodysuit. Happy 1st birthday! Celebrate your baby girl's first b-day with this cute I'm 1 pink superhero design. Happy Birthday one-year-old! Our unisex one piece baby bodysuit make great gift for newborns, babies, infants, baby showers and expectant moms. An ideal gift for any new parent who will want one in every color.