Fill a cocktail shaker with ice and 1½ ounces of citrus-flavored vodka. Shake well and strain into a chilled martini glass. Garnish with two pieces of thinly sliced star fruit. Pierce the star fruit with a toothpick to perch on the edge of the glass. Chatsworth martini glass, $81, by Royal Scot by Home James, michaelcfina.com.