In blender with ice, combine Midori, half & half, and pineapple juice. Blend until smooth. In pousse glass, pour Blue Curacao, lining bottom half of glass by smoothly rotating. Slowly pour blended mixture into glass being careful to layer colors. Drizzle Chambord, using bar spoon, along inside edge of glass to continue layering of colors. Garnish with watermelon ball, honeydew melon ball and cantaloupe ball.