Build in a highball glass and garnish with the lime wedge.
Variation: Try this: Pour 1.5 ounces of Malibu rum in a mixing glass. Add 1 ounce each of pineapple and cranberry juices. Shake it very hard until the pineapple juice makes nice foam on top, then strain it into a chilled martini glass. Grate fresh nutmeg on top.