Personalized Dream Future Big Sister Toddler Long Sleeve T-Shirt. Future big sister Toddler Long Sleeve Tee - White with an adorable little girl in a pink dress and straw hat with a pink ribbon. She says MY DREAM CAME TRUE! I'M GOING TO BE A BIG SISTER! A classic for Fall, Winter and Spring, these long sleeve toddler t-shirts are sure to be a staple in your child's wardrobe. Whether layered or alone, this t-shirt is soft yet durable enough to stand up to your toddler's playtime demands.