The Battery Daddy is a great organizer for batteries. Unfortunately, it only has storage areas designated for AAA, AA, C, D, and 9-volt. This design allows you to convert the D-cell storage slots into holders for a variety of button cells.
I used TPU to help the holder grip the cells.
I've included STL files for the following common button cells: 2032, 2025, and 303/357.
Version 2 notes: Sizing has been corrected from an earlier version, which required resizing within your slicer program.
The author marked this model as their own original creation.