Have you ever daydreamed about a grand wedding, without the hefty price tag? Well, don't we all? It turns out some people actually have the audacity to ask their guests to foot the bill for their big day. And not just the usual gifts, but the whole shebang: venue, food, drinks, cake, flowers, entertainment, etc. How do they do it? By sending out invitations that look like invoices, demanding a minimum amount of money per person, AFTER the guest RSVP's ‘yes’. Sounds crazy, right? But it's true.…