In a shaker, add
2 oz white rum (or strong green tea for a mocktail)
.75 oz fresh lime juice
.5 rich simple syrup (2:1 ratio)
Add ice and shake. Strain into chilled coupe or cocktail glass. Add 8-10 drops Crude "Rizzo", Tiki Series, "Attawanhood" or "Sycophant" or either “X” bitters