1. Combine cubed mango, sugar, 1 tablespoon lime juice, and coconut milk in a blender; process until mixture is smooth, scraping sides as necessary. Pour mixture into the freezer can of an ice-cream freezer, and freeze according to manufacturer's instructions to soft-serve consistency. Spoon sherbet into a freezer-safe container; cover and freeze 2 hours or until firm. Sprinkle each serving with coconut.