What kind of dippers to have for a chocolate fountain?

I’m planning my sister’s bridal shower and want to have a chocolate fountain display. What are some popular dippers? And what about bananas and apples, how do you put them out for the guest without having them brown to fast.I’m planning my sister’s bridal shower and want to have a chocolate fountain display. What are some popular dippers? And what about bananas and apples, how do you put them out for the guest without having them brown to fast.