Personalized Purple Dinosaur 3rd Birthday Toddler T-Shirt. LIL' THREE-OSAURUS 3rd birthday Toddler T-Shirt - Heather and Royal with cute purple cartoon dinosaur and big polka dotted number 3. A toddler-soft cotton tee in look-at-me, big kid colors. 4.5 oz., 100% combed ringspun cotton. White is sewn with 100% cotton thread. Topstitched rib crew neck. Double-needle stitched sleeves and bottom hem. Shoulder-to-shoulder taping.