L.D.
I had a chocolate fondue party a couple years ago, and I supplied chocolate, pretzels, strawberries, and the skewers. I asked my friends who were coming to bring their favorite food to go with chocolate, and here were some of the things I can remember:
marsmallows
angel food cake squares
graham crackers
pineapple
cherries
bananas
wafer cookies
nilla wafers
Hazelnut or almond biscotti
Sectioned navel oranges
As for the cheese fondue, here are some ideas to go with that:
lil smokies
any kind of crackers
Cubed country bread
assorted cooked vegetables such as broccoli, cauliflower, carrots, and pearl onions
tostitoes or other tortilla chips