Hayley Mellor of Mellor Metals sent in this picture of Shane Mellor with a sousaphone!

The sousaphone is a brass instrument in the tuba family. Created around 1893 by J. W. Pepper at the direction of American bandleader John Philip Sousa, it was designed to be easier to play than the concert tuba while standing or marching, as well as to carry the sound of the instrument above the heads of the band. source: Wikipedia