I have assortment of 1/4 socket bits which I was carrying in plastic bags inside of tool bag. When you have all those small parts in one place, it is difficult to find something which you look for.

So I made something super minimal socket holder which can hold different sizes of 1/4 socket bits (they slide on holder which is super simple to make - you can create any size you wish).

It should be easy to make it even for bigger socket bits, but I did not need it :)

I just hope this will maybe helpful to someone (I would like to find something like that).
Dalibor

P.S. I guess you may need to tweak sizes little bit to include variation of you printer/filament.