Personalized Stick Girl Future Big Sister Toddler T-Shirt. Future big sister Toddler T-Shirt - Heather and Royal with a cute cartoon stick girl waving her arms and big pink heart. She says I'M GOING TO BE A BIG 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.