An Alto trombone gig bag. Most saw a Monfrotto camera accessories bag, I saw the potential for a trombone carrier, so I made a rigid sleeve for the slide, a cushion for the bell flare, and a holder to keep the bell section firmly in place. My better half's Conn 36H was the model, but he prefers to use a double case on the occasions when he needs both. So, it's basically new. $65. shipped conus, or meet in the NY/Philly area.

Trying to post a few pictures.