Summary

If you can buy filament from here, it would be helpful to me.

The hook part is replaceable, and the filament is multi-colored. The assembly should be press-fit slowly with a vise.

This is an integrated design that combines a business card holder and a smartphone stand.

Please download the business card holder from the remix source.
https://www.thingiverse.com/thing:4827376
https://www.thingiverse.com/thing:4832568
https://www.thingiverse.com/thing:4831496