Personalized Trumpet Nut Youth T-Shirt. An acorn nut holding a trumpet is a humorous musical instrument gift design to tickle the funny bone of brass musicians in concert, jazz and marching band. 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.