Tanzanian Tonic

1 cup pineapple juice
1 cup apricot nectar
1 cup peach nectar
2 oz lemon juice
2 oz orange juice
1 oz grenadine syrup
6 oz light rum
1 dash dark rum

Combine ingredients in a blender until smooth. Pour over ice in 4oz glasses, and add a dash of dark rum to each. Garnish with halves orange slices and stemmed maraschino cherries.