Crystal filament sample display stand (modular)

A few months ago I chose the beautiful crystal filament sample of SavageLau (https://makerworld.com/en/models/69402#profileId-73706) as my default sample to compare the colors of different filaments. I really like the look of a pile of crystals on my desk, compared to a navy of benchys. I label the different types on the bottom of the crystal. When the pile grew bigger I searched for a better way to store them but not in a box. I needed something with a small footprint to fit on my desk which also displays all the nice colored crystals.So I created this simple modular stand. And now I want even more colors to fill it :D It consists of two different types, one stackable module which fits four crystals and a top cover part which also fits four crystals. They are easily stackable and glue can be used to get it more stable. The higher you stack them, the more shaky it gets. The size of one stack module is 185x40x62mm (wxdxh, without the pins on the top). Boost MeA boost would be great :)