Personalized Luckiest 3rd Grade Teacher Men's Tank Top. Funny St. Patrick's Day Men's Tank Top - Black for grade school teachers with lucky horseshoe, pot of gold, Irish shamrocks and chalkboard text says LUCKIEST 3RD GRADE TEACHER IN THE WORLD. Pre-shrunk 100% cotton 6.1 ounce Quarter turned Adult: S, M, L, XL, 2XL