You definitely need the Flaming Cabbage
When we owned our old fashioned diner/soda fountain I did a 60s hors d' party. The star of the show was something I found in an old Joy of Cooking; The Flaming Cabbage. This is my version:
Take a large cabbage, trim the bad leaves, trim the bottom to sit flat. Hollow out a place in the top of the cabbage that a small can of Sterno can fit into tightly. Then take bamboo skewers of different lengths and decide what tasty tidbits to impale on them- then stick the skewers all over the cabbage so it looks like Sputnik and light the Sterno. You can dress it all up with parsley or whatever- the idea is that people "grill" their own tidbits- I used tiny cocktail sausages, cheese cubes, olives, cherry tomatoes, bits of ham, pineapple. It is hysterical and everybody will LOVE it. Put out dipping sauces or crackers for the melted cheese- whatever.