In case you print several of these filament swatches, you might need a storage solution.

Here is a configurable one. You can even add little pegboard nubs to fix your swatches to a p-slot type pegboard. This box is based on the configurable box from Jaxel. Thanks a lot!
To customize, install OpenSCAD on your own computer and follow the customizing instructions on this thing page.
I posted a new box with flippable swatch holders here:
Thanks to mino and divinejimmi for their photos and the approval to re-use them here!
If you print a box, please share a picture using the "comment" button and attach the picture.
Bugfix in V4: Thanks to Adam the lid and box are now level and ready for printing.
Update in V5: Thanks to DomDomDom for the idea to use it for dia frames and make a side-by-side-version.

You can customize:
3 lines of text (Default: Filament swatches)
The number of swatches to hold
Number of columns of swatches side-by-side! Massive swatch collections possible. STL for 2x40 and 3x40 swatches included!
Wether pegboard nubs are to be included (for P-SLOT peg board type)
If you like it, please have a look at all my customizable creations. There are configurable-text-based creations, multi-line label, gadget display stand, sweeping name plate, bunting banner, customizable text box III, pyramid text, name plate, Customizable text box with lid and round text. Have also a look at my configurable pack of dogs, rabbits, reindeers and santas. There are also useful coat hangers and finger toys.
It slices well using PrusaSlicer, Slic3r or Simplify3D. Don't use supports.
The author remixed this model.
filament swatch box, also pegboard version