I claim the ornamental design for a Russian roulette beverage dispenser, as shown and described.
FIG. 1 is a perspective view of the Russian roulette beverage dispenser showing my new design, featuring beverage dispensing from the muzzle of the revolver;
FIG. 2 is a right side view of the Russian roulette beverage dispenser showing my new design;
FIG. 3 is a left side view of the Russian roulette beverage dispenser showing my new design;
FIG. 4 is a front view of the Russian roulette beverage dispenser showing my new design;
FIG. 5 is a back view of the Russian roulette beverage dispenser showing my new design;
FIG. 6 is a top view of the Russian roulette beverage dispenser showing my new design; and,
FIG. 7 is a bottom view of the Russian roulette beverage dispenser showing my new design.