We've lately been discussing this topic in our V....our recently divorced friend is thinking of having her old engagement/wedding rings broken down and having 3 rings made with all the diamonds dispersed among the three new rings so we all have a part of her. Very thoughtful of her to want to do that. I suspect my wife and I will still wear our modest wedding bands too but we haven't discussed that yet. Of course, we all 3 could just take the easy way out and order 3 distinctly matching bands that should signify to all that we are together. That would be fun to watch at parties as people put 2 and 2 together!
What kind of ceremony to do? Don't know what's legal or if we even want to do anything legal but surely a commitment ceremony of some sort is in the offing.