Personalized 3rd birthday Owl Toddler Long Sleeve T-Shirt. Make their 3rd birthday extra special with our unique and charming products that are designed to make memories that will last a lifetime. 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.