Good cocktails for a Luau themed party?

I am throwing a BIG birthday party (~50 people) and need to know what cool thematic cocktails I can make for a luau party.I have a case of all 3 of these so would like one of these to be the base:Zacapa Dark RumKetel One VodkaTanqueray GinI was just going to make one big batch.Thanks! http://www.reddit.com/r/cocktails/comments/3f32z7/good_cocktails_for_a_luau_themed_party/