kT,
it's similar but not quite what's wrong with my father's sporran. In my case the cantle has threaded posts that stick through the leather and then each post has a cap nut tightened onto it. I can actually unscrew the nuts from the other posts.....I wish I had a digital cam to show you.
I'm going to have to measure them I think to find the correct size. I'll try looking online...if no luck, I may have to take you up on your offer Southern Breeze.