1 1/2 oz of coconut rum
1 1/2 oz of spiced rum
3-6 oz of 7-up soda (or Sprite)
1 splash of blackcurrant cordial
1 splash of blue curacao liqueur
1 splash of sweet and sour mix
Shake all ingredients except 7-up (or Sprite) in a cocktail shaker with ice. Strain into glass or serve on the rocks. Top off with 7-up (or Sprite).