Personalized Pirate 4th Birthday Toddler Long Sleeve T-Shirt. Ahoy, Mateys! A pirate alligator and his parrot friend have found a birthday treasure chest full of gold, jewels, and cake! Cute 4th birthday gift for the four year old! 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.