This Airtag case the perfect design for mounting your Airtag onto any surface. Whether you want to drill this case directly to a surface, or use the holes to ziptie, you can fasten it pretty much anywhere. Airtags also scratch with very little effort so using this case will avoid that.
The plug on the bottom is notched so when your Airtag is placed inside you will be able to press on it until it is sealed. This is great for keeping out water, dirt, sand, snow and more.
I recommend using a TPU material to print so it is able to flex to any surface. It will also allow the plug on the bottom to be pressure fitted in.