Hi there. We did a candy buffet for our almost married reception. It was a huge hit! BUt for everything bags, scoops, candy and containers cost me close to $700. You need to make sure you have enough for everyone is the huge thing! But they loved it!
For our AHR we are doing a photobooth. We hired this amazing company and they have tons of props and frames. Totally awesome. AND when they print they print 8 pictures. 4 each side by side.. 4 for the person/couple to take home and a set of 4 to go in our guestbook and then they sign it. So its the best of both worlds!
Good luck!