For a Western Wedding Reception, the groom has got to have a great hat, even if he doesn't wear it and it's just part of the decor :) In this case vintage is the way to go. This hat is from 3VintagePeople on Etsy...
Cinch Men's Red Geo Print Shirt from DiscountWesternWear.com a really fun shop if you love cowboy stuff.
This belt buckle is GORGEOUS from KennedyHandmade
Simple and beautiful wedding band from JesseDanger