Signage
Signs, signs, signs. They are everywhere, including at your wedding. Signs to tell guests whose wedding they are attending, signs to tell them what drinks are available and at which table they will sit, and even to tell them you are happy they came and thank them for attending your wedding.
You can make your own signs. Wedding Bee has a lot of ideas: http://diy.weddingbee.com/category/signage
If you are good at design work, a local commercial print shop can help, such at http://www.undercoverprinter.com/ or http://mandmprint.com/ here in Northern Virginia. Need more ideas? http://reimaginedjustforyou.wordpress.com/2012/08/09/wedding-signs/
Or you can buy signs from your local stationary store., . Of course, there is always Etsy: http://www.etsy.com/search?q=wedding%20signage&view_type=gallery&ship_to=ZZ&min=0&max=0&ref=auto-1
Have fun with the style!