In a blender, blend together all ingredients for the white layer to a thick slushy consistency. Add more ice if needed to obtain a thick texture. Pour white layer into a bowl and set aside.
Rinse blender thoroughly, then blend together all of the blue layer ingredients. If your blueberry mixture is not blue enough you can use a drop or two of blue food coloring to help boost the blue color. Pour the blue layer into a new bowl and set aside.
Rinse blender thoroughly, then blend together all of the red layer ingredients.
Take one of your cups you intend to serve the drink in, and carefully spoon in a layer of the red mixture.
Using a new or clean spoon - spoon in a thick layer of the white, almost twice as much as the red but leaving enough space for the blue layer.
Using another new or clean spoon carefully spoon on the blue layer almost to the top of your cup. Garnish the drink with blueberries, cherries, and shredded coconut.
Serve immediately. The drink will create the tie-dye effect by itself.
This drink is best served immediately as it is a frozen beverage and will melt.
You can easily change the layers by using different frozen fruits to make the drink any colors you want.
Serves 6-8, depending on the size of the serving glasses.
Nutritional information is for the slush only, and doesn't include garnishes.