Personalized 9th Birthday Baseball 9 Year Old Boy Baby Bodysuit. 9th Birthday Baby Bodysuit - Heather and Navy has baseball sports ball logo with being nine is a ball slogan quote for kids turning 9 years 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.