01 - Combine frozen pineapple chunks, frozen mango chunks, ripe banana, coconut milk, and lime juice in a blender. Blend on high speed until completely smooth and creamy, approximately 1-2 minutes. Stop and scrape down sides if necessary.
02 - Pour the blended tropical fruit mixture evenly into two tall glasses, filling each approximately halfway. Ensure glasses are sturdy and tall enough to accommodate additional ingredients.
03 - Slowly pour 1 cup of chilled lemon-lime soda into each glass. Pour gently down the side to prevent excessive fizzing and maintain the layered effect. The soda will create a bubbly, refreshing float.
04 - Place one scoop of vegan vanilla ice cream on top of each float. The ice cream will slowly melt into the tropical mixture, creating a creamy, indulgent texture.
05 - Decorate each float with fresh mint leaves, pineapple wedges, and a sprinkle of toasted coconut flakes. Serve immediately with straws and long spoons for stirring and enjoying the layered components.