There are some great combinations at The Melting Pot. If you choose to have your own Fondue Feast Night, maybe some of their offerings may inspire you!
Fondue a la France - Baby Brie, Gruyere, Raclette, bacon, onions, white truffle cream and fresh chives
Spinach Artichoke Cheese Fondue - Fontina, Butterkase, spinach, artichoke hearts, garlic
Fiesta Cheese Fondue - Cheddar cheese with Mexican herbs, spices, jalapeno peppers, and salsa (served with tortilla chips)
Wisconsin Trio Cheese Fondue - Fontina, Butterkase and buttermilk bleu cheeses, white wine, scallions and sherry
Traditional Swiss Cheese Fondue - Gruyere and Emmethaler, white wine, garlic, nutmeg, lemon and Kirschwasser
White Chocolate Creme Brulee - white chocolate and caramelized sugar
The Original - milk chocolate with crunchy peanut butter
Disaronno Meltdown - White chocolate with Disaronno (flambéed)
Cookies N Cream Marshmallow Dream - Dark chocolate with marshmallow cream, flambéed, and topped with Oreo cookie crumbs
Flaming Turtle - Milk chocolate, caramel and chopped pecans (flambéed)
Pure Chocolate - the title says it all.
Bananas Foster - White chocolate, bananas, cinnamon, and flambéed.
Yin and Yang - Half dark chocolate, half white chocolate
Chocolate S'mores - Milk chocolate topped with marshmallow cream, flambéed, and topped with graham cracker crumbs.
Other add ins they suggest are Baileys, Cointreau, Grand Marnier, Chambord, or Tuaca.