Personalized Luckiest 2nd Grade Teacher Youth T-Shirt. Funny St. Patrick's Day Youth T-Shirt - Kelly Green for grade school teachers with lucky horseshoe, pot of gold, Irish shamrocks and chalkboard text says LUCKIEST 2ND GRADE TEACHER IN THE WORLD. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.