This one piece case for AirTags is very easy to print and doesn’t requires any supports. The holder fits tight. Inserting and removing the AirTag needs a little force.
The holder in the pictures are printed on a Prusa Mini with very fine settings (0.05mm), took 40min and used a little more than 1g of filament. Printing it on a standard 0.2mm works as well and will take around 10min.
Printer: Prusa Mini
Filament brand: DasFilament
Filament material: PLA