Yubikey 5c + USB A + Magnet

Keyring holder for both the Yubikey 5c NFC and a USB A to C adapter as designed by Effapple.
Modification
I added a larger keying loop to make using the Yubikey easier and I have also added a small cut-out for a few 6x3x2mm bar magnets to help retain the USB adapter
https://amzn.eu/d/009k5tPa