I really liked the cat earrings Cosmin.solo uploaded, but I needed a few changes. I scaled to 75%, added a top loop to fit the earring hooks I use and I fixed where a bit of the ear did not print because it was now too thin after being scaled down. I thin cloned and mirrored the model. Cats are now 35 mm tall. Edits were made in TinkerCAD.
I use these earring hooks from Amazon: https://a.co/d/4sCADRe
Thanks to Cosmin.solo for source model.