If making the kiwi cups, shave the bottom of the kiwis off so they can stand on end. Then slice 1/4-inch off the top of each. Use a spoon to cut the flesh out of the kiwi in a circular motion. Save for the fruit salad. Place the kiwis on a paper towel to absorb the extra juice.
Dice all the fruit and place in a large bowl. Add the chopped mint.
Slit the vanilla bean down the center, lengthwise. Use the edge of the knife to scrape the vanilla bean seeds out of the pod. Then add the seed paste to the fruit salad and toss well to coat. Add the sugar if needed and toss again.
Kiwifruit has a greater allergy potential than many fruits. Most people know if they are allergic to it and keep their distance. Just be careful when serving to children that have a heightened sensitivity to foods.