Prepare the Fruit: Place the frozen pineapple chunks in a blender. Add 1/4 cup coconut water and 1/2 tablespoon honey or agave syrup (if using). Blend until smooth. Pour the pineapple mixture into a separate container and set aside.
Blend the Strawberries: In the same blender, combine the frozen strawberries, the remaining 1/4 cup coconut water, 1/2 tablespoon honey or agave syrup (if using), and lime juice. Blend until smooth.
Assemble the Slushies: In glasses, alternate spooning the pineapple and strawberry mixtures to create a swirled effect.
Finish & Serve: Add crushed ice to the slushies for extra texture, and stir lightly to blend the colors. Serve immediately with a straw and enjoy!