Personalized 3rd Birthday Party Cute Monster Toddler T-Shirt. Cute monster and balloon for a 3 year old birthday party on a Toddler T-Shirt - White boys or girls 3rd birthday toddler outfit 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.