I love ham roll-ups.
Take sliced ham (deli ham, usually). Pat the ham slices dry. Spread cream cheese thinly over each slice. Lay a midget dill pickle on each piece of ham. Roll up and cut into bite-size pieces. (You could also do green onions instead of pickles, but I'm not an onion fan myself!)
Another good one is BLT dip. This is the one I always have to take places!
1 cup sour cream
1 cup mayonnaise or Miracle Whip (whichever you prefer)
1 pound bacon
1 tomato, seeded and diced
Fry bacon till crisp; cool and crumble. Combine sour cream and mayonnaise; stir in bacon. Add tomato just before serving (otherwise it gets runny). You can serve this with Fritos, crackers, tortilla chips, pretzels....darn near anything.