I found this article from Winter 2007, & thought it was a great idea.
Help guests find their seats by offering personalized luggage tags that make a functional keepsake. Print labels with lines for name, address, and phone number onto card stock (use the insert that comes with the tags as a template). calligraphy guests’ names. Slip tag and decorative paper backing into the plastic cover. Loop cording through hole at top, and hang on chairs.
Photo Credits: Martha Stewart Weddings