Personalized Plaid Inner Leprechaun T-Shirt. Funny St. Patrick's Day T-Shirt - Light Blue with a green leprechaun holding a 4 leaf clover, wearing a derby and plaid bow tie. He says MY INNER LEPRECHAUN MADE ME DO IT. Distressed finish. Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.