Personalized Irish Light Toddler T-Shirt. You don't have to be Irish to be green text with the picture of an energy saving light bulb is a funny gift design for the energy conserving on St. Patrick's Day and Celtic events. A toddler-soft cotton tee in look-at-me, big kid colors. 4.5 oz., 100% combed ringspun cotton. White is sewn with 100% cotton thread. Topstitched rib crew neck. Double-needle stitched sleeves and bottom hem. Shoulder-to-shoulder taping.