Personalized Dyngus Day Babys 1st Polish Baby Bodysuit. My 1st Dyngus Day Baby Bodysuit - Heather and Red with colorful rooster design for celebrating this fun Polish American day after Easter holiday. 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.