Personalized Luckiest 3rd Grade Teacher Newborn Layette. Funny St. Patrick's Day Newborn Layette - White for grade school teachers with lucky horseshoe, pot of gold, Irish shamrocks and chalkboard text says LUCKIEST 3RD GRADE TEACHER IN THE WORLD. 100% combed ringspun cotton 5.8 ounce 1×1 baby rib sleeper. 3/8" flatlock binding at envelope neck and cuffs. Back sleeve flap to protect hands. Elastic opening at bottom. Infant: 0-3 Months