Add half of the strawberries, pineapple chunks or juice and margarita mix to a blender (If you have a humongous blender then do it all).
Let sit for 5 minutes so the margarita mix slightly softens the frozen fruit.
Blend well until everything is a smooth slush, then add half of the coconut milk (or again, all of it if your blender is very large).
Blend one more time until all combined and serve in pretty flutes that have been rimmed with lime and dipped in granulated sugar (optional), or other clear glasses. If it seems to thick you can add a little more margarita mix, as needed, and re-blend…but eventually, as it sits for several minutes it will become less thick on it’s own.
Sprinkle some shredded coconut on top and add a piece of fresh pineapple, strawberry and/or lime section onto a cocktail skewer and lay on top of glass or just cut them and stick on the actual glass. Enjoy!