1 part of Tanqueray Sterling vodka (or Vodka)
1 part of Midori melon liqueur (or watermelon liqueur)
2 dash of Triple Sec
1 splash of grenadine syrup
1 splash of 7-up soda (or Sprite)
1 part of Bacardi light rum (or Light Rum)
sweet and sour mix
Add equal parts vodka, rum, and melon liqueur in a tall cocktail glass with ice. Add a couple of splashes of triple sec (orange liquor). Fill to the top with sweet and sour mix. Add a splash of 7-up and grenadine.