Personalized 3rd Birthday Zoo Elephant Childs Toddler Long Sleeve T-Shirt. Cute zoo animal elephant wears a polka dot party hat with number 3 and I'm three quote for a 3rd birthday party on a Toddler Long Sleeve Tee - Pink. 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.