Polygamy of 3?

Noticed how the guys in Swamp Shooting Gallery, Clock Town Shooting Gallery and Swamp Tourist Center have the same kind of rings. Maybe they are a polygamy? They are three so that would explain the two rings, since they need a ring from both partners. They do look a lot alike, everything else but the facial expressions that is, so maybe they are brothers. But I don't think so.

Hmm..But there is like no difference in the ringfinger's and indexfinger's lenght. Homosexuals tend to have a bigger lenght difference (link). And they don't seem to be guilty of marriage when you show the Couple's Mask to them. And the one in Swamp Shooting Gallery says Link with the Fairy Mask is a beauty. So let's skip the polygamy theory.

According to Wikipedia it is common to wear an academy signet ring on the opposite ring finger to the wedding ring finger. So maybe they have a Hairy Men's Club, a Secret Club for Overweight Businessmen or something like that. But why two rings? Maybe they wear them just because it looks cool?

Maybe they still are brothers? And the ring is a sign of that. Doesn't the Clocktown-guy's lips looks way too thick? Maybe he took some botox. Failed beauty surgery if that's the case. But who did the surgery?
The mystery remains unsolved.