You may want to consider printing out some elegant Monogram stickers in colors and fonts that go with your wedding. Put your new last name Initial large in the center with you first names above and below the monogram. A circle would be nice. Get a thin elegant ribbon (you can even get them personalized) wrap it around the box and hold the ribbon in place with the sticker. It's a simple, elegant and pesonal touch that looks like an individual wrapped gift for each guest.