Personalized Daddy Little Cutie Pi Day Math Girls Toddler T-Shirt. Daddy's little cutie Toddler T-Shirt - Vintage Hot Pink with Pi math symbol in pink for a daughter. Fun baby shower gift for a math teacher. 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.