"The Bunnies should kiss" was the club lingo for how ladies should orientate the cufflinks. Prior to reading that I wasn't even aware the cufflinks were cast for both left and right wrists.
This was one of the more difficult details to verify, as photos of the cufflinks readably visible are rare. And more than few showed them worn backwards! There are technically a few different ways the heads could face each other, but my tireless research leads me to believe the below is correct.
Yet surely such a rule need not be limited to cufflinks, yes? ;-)