Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4586593.

Edit: Added a new model! Several improvements:

• Flat bottom so that it stands on its own
• Grooves inside to improve friction fit
• Charging hole on bottom

I got the small Tile Sticker to help me from losing my Pax, though the Pax is curved so doesn't have a good surface to stick on.

This attachment fits both the Pax Era and Pax Era Pro and holds the Tile Sticker securely to it.

Everything is a friction fit, so you don't need to use the sticker on the Tile Sticker.

There's two models, one which fully surrounds the tile and another slim one where the Tile sticks out. Slim seems secure enough and is a much better feel.

The preview shows a solid wall in the middle, though when slicing this gets removed for being so thin.