Personalized Sun Stick Girl Little Sister Toddler T-Shirt. Little sister Toddler T-Shirt - White with a funny, little cartoon stick figure baby in diapers wearing a pink T-shirt with a sun on the front. She says I'M THE LITTLE SISTER. 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.