Perfect for a kids' table or young-at-heart group -- Martha Stewart's Tree Place Card
How cute would it be to use pictures as place cards instead of names? ParisEstates has an adorable idea for that! Just put a picture in the top.
For the nature lovers, try Martha's Evergreen Place-Card Holders. These tiny things are so cute, and imagine, everything you need, you most definitely already have.
Lastly, this Mini Tree DIY Kit would be a great way to get people active at the table. Just put their names on the star and let your party guests figure out how to put it together while you're putting last minute touches on the meal. Or, put them together yourself before. Either way, it's adorable.