A Pineapple Daiquiri with herbal chocolatey flavours contributed by the addition of two liqueurs. (If you only have pineapple juice rather than fresh pineapple...
This is my current fave. The fresh pineapple really kicks it up a notch. Pair in the herbal with a thread of cacao (how do green chartreuse and chocolate go together so well???) And you wind up with a truly interesting, totally drinkable result.