It can stay on the spool in the AMS if you have that Bambu Labs multi-filament setup.
The author remixed this model.
I didn't have CAD of Grandma's clip so I built this one from scratch. It's not a replica but I want to give credit for Extrutim for the groundwork.
It has a chamfered lead-in for the filament.
It has a 90 degree bend for the tab.
It's a little thicker for more strength.