1/3 oz of creme de bananes (or banana liqueur)
1 oz of grapefruit juice
1 oz of guava juice
1/3 oz of Lime Juice
1/3 oz of Passion-fruit Syrup
1 1/2 oz of white rum (or Light Rum)
Shake and strain into a cocktail glass. Garnish with a lime wedge, and serve.