If you look closely, this filament clip holder is ~~remixed~~ sliced-and-diced from the excellent MMU Material Markers clip for non-MMU by @Florian_5954

This version is the same as my other post, except this is a set of 20, incase you have many filaments, like some people.

It holds my filament clips (and probably the originals as well) and you can stick them on anything, especially with 19mm (¾") double-sided (Tesa) tape.