A keychain / protective cover for the Google Cloud Titan Security Key USB-C/NFC model.
I printed it in Amazon PETG at 0.2mm layer height. A .3mf is available.
After printing, it needs to be gently pried open, as the peg tends to stick to the opposite wall.
Supports are needed, at the very least, for the pin that holds the usb key in place and the keychain loop.
The author hasn't provided the model origin yet.