Wanted to have an Airtag attached to my cardholder, though the existing options didn't satisfy me really.
The one on the foto was printed with black PLA, 0.4mm nozzle and 0.05mm layers.
Printed a test in 0.2mm which looks good too, just wanted a really smooth one for everyday use.
The author remixed this model.
altered top plate to fit my existing cardholder