Personalized Coolest Tuba Toddler Long Sleeve 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 classic for Fall, Winter and Spring, these long sleeve toddler t-shirts are sure to be a staple in your child's wardrobe. Whether layered or alone, this t-shirt is soft yet durable enough to stand up to your toddler's playtime demands.