Personalized 1st Turkey Day Thanksgiving T-Shirt. It's my 1st Turkey Day T-Shirt - Silver outfit for a baby boy or girl on Thanksgiving. Everyone loves our Custom T-Shirts! Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.