Place cards have a very poor reputation-they're the sort of things you see at stuffy little tea parties or dreary dinner parties. I haven't looked back on any of my experiences and said, "You know what would've made Eunice's party so much better? Place cards! That, and not getting my hair caught on fire in the centerpiece."
But if you are a fun individual (and you are if you're reading this), you can make place cards work to your advantage. Start with these fantastic Animal Placecard Holders from west elm (1330 Chestnut St). You probably should buy about four sets at LEAST, since little silver giraffes have a way of going missing. Besides, having lots of placecard holders can be good karma--the more you have, the more fun little gatherings you'll want to have. If everyone had animal-shaped placecard holders, perhaps there would be no such thing as hermits.
Anyway, what can you do after you buy the holders? You can either dutifuly fill cards out with everyone's name, then waste three whole evenings trying to find the right place for your guests. OR you can fill out the cards with the names of splashy/tawdry historical figures, literary characters ("No, I get to be Moll Flanders!") or fun made-up names.
Photo from westelm.com