Personalized Purple Dinosaur 2nd Birthday Toddler Long Sleeve T-Shirt. LIL' TWO-OSAURUS 2nd birthday Toddler Long Sleeve Tee - Black with cute purple cartoon dinosaur and big polka dotted number 2. 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.