Personalized Coolest Tuba Toddler T-Shirt. The world's coolest tuba player with a snowman tuba player wearing a music note scarf is a humorous low brass design. Fun gifts for musicians and band geeks at birthdays and holidays. 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.