Personalized Trombone Text Christmas Tree Toddler Long Sleeve 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. 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.