Personalized Luckiest Teacher Women's Plus Size T-Shirt. Funny St. Patrick's Day Women's Plus Size T-Shirt - Vintage Red for teachers with lucky horseshoe, pot of gold, Irish shamrocks and chalkboard text says LUCKIEST TEACHER IN THE WORLD. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40 combed ringspun cotton/polyester)