I have made a box that houses an Airtag. This Box can be glued to a Toolbox, Car, or some other item you want to track.

You need x2 M3 screw, head diameter 5.25mm, screw length: 6mm

There are two versions V2 is 4mm wider to accomidate for the screws head.

I have printed it with PETG and 0.4mm nozzel.