Personalized Trombone Halloween Cobwebs White Text Women's Plus Size T-Shirt. Trombone in cobweb text with the image of a trombone covered in cobwebs is a humorous Halloween gift design for low brass musicians, school music teachers and students in concert, jazz and marching band. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40 combed ringspun cotton/polyester)