Anything with pineapple! --
-Something easy would just be canned pineapple chunks with toothpicks
-You can make a pineapple-y cheese ball (check out recipes, but it would have cream cheese, crushed pineapple, then maybe add something like bacon bits, onion powder, garlic powder, and/or sauteed chopped jalapeno)
-fruit slices with fruit dip (my sister makes a delicious one, and I think she just mixes together cream cheese and marshmallow creme; she might add some sugar, if that's not sweet enough), and you can dip apples, pineapples, strawberries, grapes, etc.
-ham roll-ups (really simple to use honey-glazed ham slices, and just roll up one slice and pierce with a toothpick; or to make it a little more jazzy, you could roll it around a pineapple chunk; or, one of my favorites, is to spread the ham slice with some sort of creamy pineapple something [like the cheese ball] and then roll that up - yum!)
-fruit salad -- my family's recipe is pineapple chunks, bananas, grapes, flaked coconut (optional if you have people who don't like coconut), chopped nuts (optional), and a spoonful or two of orange juice concentrate
-lemonade/punch - the juice of 3 lemons (fresh is so much better, but bottled is fine), 2 c. sugar, 1/2 can of orange juice concentrate, 1/2 can of pineapple juice, water to make 1 gallon (may need to adjust ingredients to taste; or you can use sprite or something like that instead of water to make it fizzy)
-a tray with chunks of ham, various types of cheese, and pineapple for people to choose their own; or you could use bamboo skewers to make shishkabobs, alternating a cube of ham with a cube of cheese and pineapple