 Many rum-based cocktails, especially those with fruit flavors, tend to be decorated with tropical-themed garnishes or slices of fruit.Tequila-based drinks favor limes and other citrus fruits.Gin- and vodka-based drinks tend toward garnishes with a more dignified flair (olives, onions, or possibly a citrus twist or a single maraschino cherry), unless they are variations of a fruity rum-based drink.