Personalized Trombone Rocks Youth T-Shirt. Cute Trombone Rocks Youth T-Shirt - Heather has a cool butterfly logo for the trombonist in band, jazz band and orchestral groups. Get matching trombone gifts for your music section. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.