Personalized 5th Birthday Penguin Toddler T-Shirt. 5th Birthday Toddler T-Shirt - Charcoal party celebration gift has cute penguin in a polka dot hat with the number 5 on its tummy. 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.