Cut the Kiwano horned melon in half. Scoop out the middle, including the seeds, and place the seeds and pulp in a blender. Save the two halves of the melon for later.

Cut the papaya in half and scoop out the seeds. Remove the fruit and place it in the blender.

Cut the passion fruit in half and scoop the seeds and pulp into the blender.

Blend the fruits for 1 minute.

Strain through a fine mesh strainer to remove the seeds.

Place the strained mixture back in the blender. Cut the dragon fruit in half and scoop out half of the inside and place in the blender.

Juice the lime into the blender and add the sugar and vodka.

Blend the mixture until frothy.

Clean out the inside of both halves of the horned melon. Stand each upright so it looks like a cup. Add several ice cubes to each. Pour a quarter of the frothy cocktail into each cup and serve with a straw.

Serve the remaining cocktail in two short glasses filled with ice.