I love how creative brides (and grooms) get when it comes to the box they use for cards at the wedding. I've seen bird cages, fabric wrapped boxes and a lot of other ideas but one of the best I've seen is a mailbox!
I figure it not only makes sense to put cards and letters in a mailbox, but if made correctly, it can also be used as our actual mailbox in the future.
I cut the letters out on my Cricut (but you could just as easily use pre-cut letters) and gave them two good coats on Mod Podge to protect it from the elements.
(Can I just say how awesome/exciting/crazy it is to know this will be my last name soon?! Yay!)