3D-printed this Key Organizer. It also holds an Apple AirTag. Not completely my design, I redesigned an existing model to better fit my needs. I also stamped my name into the back of it (only in my personal version).
If someone owns a 3D-printer and is interested, the files are available here for free:
https://www.printables.com/de/model/530841-remixed-keytag-key-organizer-m3-attachment-loop
Oh and obviously I used some glow in the dark filament :)