Personalized Big Sis Owl Girls Sister Announcement Toddler Long Sleeve T-Shirt. Cute Sister owl has a fun retro look in pink, brown and orange, and comes on a sibling Toddler Long Sleeve Tee - Heather gift for the new Big Sis. 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.