Personalized Luckiest 3rd Grade Teacher Women's V-Neck T-Shirt. Funny St. Patrick's Day Women's V-Neck T-Shirt - Black for grade school teachers with lucky horseshoe, pot of gold, Irish shamrocks and chalkboard text says LUCKIEST 3RD GRADE TEACHER IN THE WORLD. 5.0 oz., 100% pre-shrunk cotton Athletic Heather is 90/10 cotton/polyester 1x1 rib collar with mitered v-neck Shoulder-to-shoulder taping Ladies' fit