3D Printing Nerd covered a website for creating not only your own custom parts organizer, but it also generates an external box with a latching lid to match the size of the box.
Here’s the video
Here’s the documentation part of the website. Note, they tell you that you will need to run the repair feature on the external box. This link jumps you to the English section. Ignore the description for Notion. The link does take you to the Bento Box site.