I know that this is generally just a piece of fashion advice and I will hear a lot of opinions (the rabble has never left one of my posts unanswered), but this only really applies to kilt attire. Should the cantle on my sporran match the buckle on my belt (when worn)? If so then what about plaid brooches (rarely used but I have one), and kilt pins? Also would an antiqued brass cantle be consided dressy enough for black/white tie functions? When dressing medieval or any other period fashion, the question is irrelevant. In my modern non-kilted attire my belt buckle is the only metal that isn't considered jewelry (wedding ring and such). So modern kilting is the only time I have to worry about it. That being said, I felt the rabble would be the best people to answer these questions.