Compact box with lid for storing sharpening stones and accessories for the WORK SHARP Professional Precision Adjust sharpener. One photo shows how much smaller it is than the original cardboard box. 

The lid closes with latches, holds well and opens by pulling the handles. If the box will be transported, you can glue paralon inside the lid to better holding the accessories. 

Unfortunately, my 3D printing skills aren't good enough yet, so one part of the lid is a little off. There are some threads left from the support bridge as can be seen. But this is probably just a problem with my knowledge of 3D printing settings. 
I printed in PLA. But for sure it will be better in PETG. 
 

Since the box is very compact, it's a bit tricky to take out the sharpening stones. Therefore, I made a model of tweezers, with which it is convenient to take out the sharpening stones.  

If you are interested in this model, I can share the Sketchup model with no problem if you want to make some adjustments. 

If there are any questions, don't hesitate to ask. I will answer if I can!