Cut thin slice from bottom of watermelon so it will rest evenly. Slice watermelon lengthwise in half. Carve a decorative zig-zag edge from 1/2 of watermelon. Scoop out fruit from watermelon. Scoop watermelon balls from second half.

Fill bowl with watermelon, honeydew, and cantaloupe balls, pineapple chunks, strawberries, blueberries and other fresh fruit in season. Mix and let stand. Add more fruit as needed to keep full for large party.