Personalized Stick Boy Future Big Brother T-Shirt. Future big brother T-Shirt - White with a cute cartoon stick boy waving his arms, his little puppy dog and big blue star. He says I'M GOING TO BE A BIG BROTHER. 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.