Since I like to use multicolor filaments a lot, I decided to make own because I could not find one that I would like. These are easy to print swatches which are ideal for me to show all of the colors on spool and also some space (stackable).

You can use default print settings. I use automatic supports too for area under the connector bridge, but it is not mandatory.

Because MakerWorld does not support animated thumbnails yet, here is showcase of multiple swatches stacked together:

PS: All of shown multicolor filaments are from Eryone.