Wanting to try out a new look, I was about to order some fake piercings. However, I realised I could print them myself.
The model includes 3 different sizes: 8mm, 9mm and 10mm. I've included both a version you can use immediately off the print bed and a version that needs a bit of work. Use a lighter to melt a custom size gap in.
The models print fine without support, and within minutes. 0.2mm layer height works fine. Depending on filament they bend a bit too easily for my taste but other than that they're relatively comfortable.
The author hasn't provided the model origin yet.