Money Making Idea Other Than Dollar Dance

I think think the dollar dance is a great idea, at a wedding! it gives people a chance to dance and speak with the newlyweds that they might not have gotten otherwise. And omg it`s just a dollar. If they don`t wanna pay, then they don`t have to dance. It`s there choice. But the weddings i`ve been to the $ dance has always been a big hit. The only other thing i can think of is the money tree. But i think if they r giving you money then they should be able to spend a little one on one time with one of the newlyweds if not both. And that is where the $ dance can come into play.