1. Preheat oven to 350 degrees F. On a rimmed baking sheet, toss coconut with the salt. Spread on sheet; toast in oven, stirring frequently, until golden brown, 8 to 10 minutes. Let cool, then crush with your hands until crumbly.
2. Pour 2 tablespoons lime juice into a shallow dish. Place coconut mixture in another dish. Dip rims of two cocktail glasses in lime juice, then in coconut mixture, coating well.
3. Combine remaining ingredients with 1 cup ice in a blender; puree until smooth. Divide evenly between prepared glasses, and serve immediately.

Yield: 2 servings