Beachbum's Own
3/4 ounce lemon juice
3/4 ounce pineapple juice
3/4 ounce orange juice
3/4 ounce passion fruit syrup
3/4 ounce Licor 43
1 ounce demerara rum
1 1/2 ounces light rum
Shake with crushed ice. Pour into a tiki mug.
Source: Jeff Berry

Bosko Hrnjak is a noted sculptor and is famous for his "Tiki" creations (http://www.tikibosko.com). He once created a Tiki Mug in the likeness of Jeff "Beachbum" Berry, but alas, it had no signature drink to be filled with. The Beachbum himself soon rectified this problem by coming up with this delightful creation.