In a cocktail shaker, add ice, blue raspberry vodka, blueberry vodka, strawberry rum, and lemon juice. Shake to chill. Strain into a highball glass over fresh ice. Top off with club soda.

You can garnish the drink with a skewer of blueberries or a lemon slice. You can substitute Blue Curacao for the blueberry syrup or buy blueberry-flavored, and vodka, but homemade syrups are great ...