Personalized Oom-Pa Long Sleeve T-Shirt. Oom-Pa tuba playing dad is a humorous music design. Fun gifts for low brass playing fathers and grandfathers at Father's Day, birthdays and holidays. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL