For this recipe you'll need either a blender or food processor. Halve, pit, and peel the peach and put it in the blender. Pulse until smooth. Add rum and ice into blender and blend together. Pour the mixture into the glass, and fill the rest with Sprite until full. Mix together with spoon. If you want it stronger, feel free to add more rum. This ends up as kind of an alcoholic smoothie, its great in the summer, especially if you use fresh peaches. If making for a crowd, measure 1 peach per person.