Personalized 6th Birthday Flamingo 6 Year Old Girl Toddler T-Shirt. Cute pink flamingo with I'm six party celebration quote on a 6th birthday Toddler T-Shirt - Heather and Royal. 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.