After printing LtDan's Trumpet v2, I noticed there were some stability issues with the leadpipe and bell pipe. A regular metal trumpet usually has two soldered pieces connecting those pipes, so I threw together two clips that will lock the pipes in place.
PLA works very nicely. I tried breaking a PLA clip at 100% infill and had a difficult time. It did snap eventually, but it had a lot of give and bent significantly before finally breaking.