Carl Marx keyring.

Meant using filament change during pause mid printing.

The silhouette is too thin and can delayer pretty easily.

Going to invent less fragile version later.

The "low" model could be more resistive to damage. IDK.

Please don't get in trouble for another, "af", keyring.

I didn't find enough information about this sign.

Feel free to give me some knowlege and background about it =)