Nowadays, due to the miracle of science, instrument makers are able to create brass instruments in a myriad of colors. J.A. Rollins has a gold soprano saxophone (Goldie), a silver alto horn (Silvio), and a black tenor saxophone (Black Betty).
There was even a famous saxophone manufacturer in California that created saxophones all different colors of the rainbow. Color changes are not restricted to saxophones. At one time, Miles Davis play a green trumpet.
If you could choose any brass instrument of any color, what would you choose?