As a wedding photographer, I love the idea of wedding banners. They add a great "prop" that couples can use that can be fun, and add something "extra" later on when they want to send thank you notes, announce their new name, or shout from the rooftops that they are MARRIED!
Some of my favorites form Etsy are below-- click on the photo to go to the listing!
Think you could try your hand at making your own? Try these tutorials:
Name sign by Whitney, from Offbeat Bride (Also includes a "thank you" template! Perfect for weddings!)
I hope that gave you some ideas for some fun photo ideas for your wedding using banners!