My sister usually hosts our side of the family's holiday party. She's uses Heavenly Ham. She usually gets the meat platter and buys a bunch of croissants or potato rolls and such. Also, sausage balls made with O'guires sausage is good. Bacon wrapped shrimp. Fruit platters with white and dark chocolate dip. Maybe if you made homemade gingerbread cookies or Christmas cutouts ones and wrap them up or put in a little baggie to send home with your guest. There's a really inexpensive cajun crab dip that Wal-Mart sells that would be good with crackers. Eggnog and a good punch.
Oriental Trading Company usually have some really cute decorations and things like Christmas-y toothpicks and such.