Fog Blower

1 1/2 oz Light Rum
1/2 oz Brandy
1/2 oz Gin
1 1/2 oz orange juice
1/2 oz lemon juice
1/2 oz orgeat syrup
1 oz Sweet Sherry

Shake all ingredients with ice, except sherry. Strain into a double old fashioned glass filled with crushed ice. Float Sweet Sherry and serve garnished with a lemon wedge.