Bottle holder for 30x MagicFly 60ml acrylic paint

After receiving a set of 30 colors for acrylic painting I realized that there was no place to store them without mixing them all in a drawer or something that way. So I decided to design a holder for the 60ml bottles. The bottom plate inlay can be used to paint a sample of the color.

Edit 2023-01-03: I didn't realize that I messed up with the files and their naming. This is corrected now and extended by alternatives. So now you get 4x4, 5x4, 5x5 and 6x5 as alternatives (and, for example, 5x4 contains a 5x4 holder now, not a 6x5 as before...).

The sizes:
4x4 --> 164x164mm
5x4 --> 204x164mm
5x5 --> 204x204mm
6x5 --> 244x204mm
( plus additional skirt, brim, whatever... )