Slice a watermelon in half and scoop out the flesh out of one half. Place it in a blender and pulse until liquid. Strain through a cheesecloth or strainer to remove the pulp. Place in the fridge to chill.

Using a melon baller, scoop out balls from the remaining half of the watermelon and the honeydew melon. Drop these into the hollowed out watermelon half.

Fill the watermelon half way with the fresh watermelon juice and fill the rest of the way with sprite. Pour into glasses and enjoy!