I have a wonderfully and characterfully battered original case with my 50-year old 10M, but it was getting increasingly frail so it has been retired to house the discarded mouthpieces and an ancient C-Melody alto that may one day get restored, while the Conn resides in a Ritter bag - not ideal but I couldn't run to a Protec - along with; Runyon Quantum mouthpiece I occasionally use for extra projection, Yamaha pull-through and numerous and probably deeply insanitary cleaning things, loads of reeds, rubber bands, bits of baking parchment paper (better for de-stickying than Rizlas, I've found) and old set-lists. In a separate bag I have my "entertainment" for non-sax-playing numbers - bright yellow tambourine and a bright green "Blast Block" which I hit the hell out of with an ancient drumstick, plus the clip-on mike. I've just bought a DigiTech 300 effects processor though, so now I need a bigger bag 🙁