I made this CR 2032 button cell battery holder to fit inside my battery caddy in the D Battery slots
Fits in a D battery slot, I made for the battery daddy that costco or amazon sells (I assume it will fit any D battery holder, if not I can make it a smaller in diameter)
Let me know if you have any suggestions for edits on this battery dispenser
Print it laying down flat, it prints best that way, then just remove the supports with a butter knife