I could not find any case or a box for my heat insert tips from CNC Kitchen that would fit my liking so I made this one myself. It can be printed in multiple colors but due to the small size of the text, I recommend using 0.2mm nozzle. I did not label the holes as it'd take more space to do so aesthetically, so I added a clockwise sign with the largest hole marked (for M8 tip). You want to place the tips clockwise from the largest (M8) to the smallest (M2.X):

M8 → M6 → M5 → M4 → M3 → M2.X

The thread is designed to be tight fit, but you can grind the 2 parts against each other to loosen it up a bit. This is the first version of the model so let me know if you come across any troubles with the design.