I designed this grommet for use in the design phase of the Prusa Mini Palette adapter and never intended to print it, and then I found myself without any grommets. I did some work to make this more printable and made it in TPU. Then I immediately found the original spare that came with the Palette, but I found that I liked the stiffer and more secure connection of the new one.
I am including a 3mf file with the print orientation. I did not use supports or brim. The step files are included as well.
The author hasn't provided the model origin yet.