½ fluid ounce rum
½ fluid ounce gin
½ fluid ounce tequila
½ fluid ounce triple sec (orange-flavored liqueur)
1 fluid ounce sweet and sour mix
1 fluid ounce cola, or to taste
1 lemon slice
Fill a cocktail shaker with ice. Pour vodka, rum, gin, tequila, triple sec, and sour mix over ice; cover and shake. Pour cocktail into a Collins or hurricane glass; top with splash of cola for color. Garnish with a lemon slice.