I don't know how they managed it, because I'd put the cufflinks between two items of clothing so they wouldn't rattle around. I suspect ultrasonics were involved.
Anyway, these were my go-to cufflinks for classy events so I really wasn't pleased they were no longer usable. I might have been able to solder them back together, but not in a way that didn't make them look as if they'd been soldered back together.
When one of my Space Invaders cufflinks died in March, I went to the Internet and bought some replacements. The replacements looked the same in the photo as the one that had died, but when I received them they were three times as thick and looked as if they were stuck to plywood instead of metal. I was not impressed.
It was thus with some trepidation that I found and ordered (from Argos, of all places) some dice cufflinks to replace the ones that had broken. Amazingly, though, they turned out to be exactly the same as the ones that had broken, except for being not broken.
Yes, I am at home all day today and going nowhere, which is why I'm reduced to regaling you with tales of game-related male jewellery.