I have Microwswiss Flowtech hotends on all of my printers, and I have a collection of Brass, CM2, CHT, CM2-CHT, and Diamond Flowtech nozzles. I made these cases to organize each printer's supplies. 

There are two versions, small and large. The large has an optional cover.

I've included the STEP files for the two cases, if you want to modify them and create one that suits your needs.

You can check out my other models at:

https://www.printables.com/@Toy_Maker_3184077/models

Your “likes” and “boosts” are appreciated.