2 Packs AirTag Holder Key Ring, Stouchi Aluminium Invisible Slim Keychain Case for AirTags 2021 Finder Items iPhone 13/12 Dogs, Keys, Backpacks Air Tag Accessories
Use this for my dog, it is super minimal...
https://www.amazon.com/gp/product/B09DCVFNFF/
Only thing is that I found that I needed to wrap the airtag itself with some clear tape to keep it from twisting itself out of the holder.
