Ceramic knives can be of two types - with broken blade and with the broken hilt. I've got couple of the latter type and decided to create something special.
After initial tests, I've realized that the key to sturdy handle for a relatively small inside-part of the blade - it is a proper slicing of the model, so pay attention to the print settngs

The model can be customised in Fusion 360, if you're at least a beginner in that product