Personalized Owl 100 Days School Toddler T-Shirt. Funny 100th Day of School Toddler T-Shirt - Purple for teachers and students with 3 cute owls on a yellow ruler says 100th DAY OF SCHOOL. Celebrate being 100 days smarter. 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.