Personalized Butterfly 1st Birthday Toddler T-Shirt. Cute and funny bug eyed cartoon butterfly with colorful polka dots and little heart says IT'S MY 1ST BIRTHDAY Toddler T-Shirt - Heather and Royal for little girls. 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.