Tasty and slightly tropical using a blend of Cosmopolitan Mixer, rum and vodka

1 1/2 parts Stirrings Cosmopolitan Mixer
1 part Parrot Bay Coconut Rum
1 part Mango Vodka
Garnish: pineapple slice and umbrella

Mix all ingredients with ice in shaker. Cover and shake vigorously. Strain into a chilled martini glass. Garnish with a pineapple slice and an umbrella.