Add the vodka, ginger syrup and lime juice into a shaker with ice and shake.
Strain into a rocks glass over the Concord grape juice ice cubes.
Top with the club soda.
Garnish with a Concord grape and piece of crystallized ginger.
*Ginger syrup: Add 1 cup fresh-pressed ginger juice and 2 cups sugar to a pot over medium heat. Stir until the sugar dissolves and remove from heat.