My wife lost the plastic collar/sleeve for her drum kit clamp that holds the Tom/Cymbal to her drum kit. Yamaha doesn't sell just the collar/sleeve - you have to buy the entire clamp assembly - so I printed her a new one. Her kit is a DTX502 series drum kit set, but this part may fit others that use the RCL500 style clamp.
Here's a link to the entire clamp assembly that I didn't want to purchase.
Because this is a compression part, it's pretty important to print with a fair number of perimeters and a high infill so you don't crush the part in the clamp.
Print it upside down (collar of the part nearest the print bed).
No supports needed.