Mai Tai

1 ounce light rum
1/2 ounce triple sec
1/4 ounce Rose's lime juice
1 1/2 ounces pineapple juice
1 1/2 ounces orange juice
1 dash of Grenadine
1/2 ounce dark rum

Shake all but the dark rum with cracked ice. Strain into old-fashioned glass. Top with dark rum. Garnish with a Maraschino Cherry