Personalized White Trombone Text Christmas Tree Youth T-Shirt. A Christmas tree composed of trombone text and stars with musical notation garland is a unique low brass winter holiday gift design for musicians, music teachers and students in concert, jazz and marching bands. 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.