Savvy Design's website has a lot of great ideas & they also have their own line of stationery. The pictures above were taken by Chrissy Lambert Photography...check out her site too if you have time!
I found this idea on Savvy Design's website, and think its genius. You place river rocks on the escort cards, and each person has to pick up the stone in order to pick up their respective card. Then they make a wish on the stone, and put it into a hurricane glass that the couple will keep. Like this: