I share printable designs of a few, but the threading of the conductor wires is quite challenging for most, so not broadly practical.
Instead I mostly sell them on #Tindie for a couple of bucks and curse a little bit when anyone orders one.
So far I offer AA, AAA, 18650, CR2450, CR2032 and now CR1632 size too!
Tedious little things, but hey, I make about a dollar an hour when I sell a few, so I've got that going on.