Would have been nice to have an attachment hole on the device itself, rather than requiring you purchase accessories to attach to a set of keys, for example.
> Apple-designed AirTag accessories include the Leather Key Ring in Saddle Brown, (PRODUCT)RED, and Baltic Blue for $35 (US); the Leather Loop in Saddle Brown and (PRODUCT)RED for $39 (US); and the Polyurethane Loop in White, Deep Navy, Sunflower, and Electric Orange for $29 (US).
These keyfob holders look like the sort of thing I'd make and sell... probably for the same £ cost as the Apple branded, mass-produced alternatives.
You can go to your local artisan and ask them to craft it from any material you choose. It's not a complicated form to create a slot for.