At my cousin’s shabbos sheva brachos they put the men in one room and the omen in another room and they had a gorgeous kumzitz. It was really beautiful (especially since the other side, unlike ours, had fantastic voices).
On the men’s side there was an ‘amateur badchan’ (translation: some teenage kid who thought he was good at telling jokes) but that kind of bombed. It was funny anyway.
And a cousin always does a grammen.