With that said, I think going for the 4th of July look at a wedding could be very fun!  Doing this could be very simple.  You could collect stuff from your friends and family to be used at your wedding, or you could go one step even better.  

Make a road trip with your fiance and go from antique store, to flea market and look for all that is american vintage.  Driving the this past weekend I saw a ton of antique dealers and little town markets that looked like they would be so fun to pick through.  What's junk to others could be a great centerpiece or room decor.  So out of this you could get some great looks for your wedding and some great quality time with your love!

Cheers!