Personalized Big Bro Announcement Thanksgiving Brother Toddler T-Shirt. I'm thankful because I'm going to be a big bro Toddler T-Shirt - White new baby announcement for Thanksgiving family dinner gatherings. 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.