I realize that a traditional mojito calls for rum, but here's an idea:

Stolichnaya Rasberry Vodka
(per 1 oz serving)
Calories (kcal) 60
Energy (kj) 251
Fats 0 g
Carbohydrates .5 g
Protein 0 g
Fiber 0 g
Sugars 0 g
Cholesterol 0 mg
Sodium 0 mg
Alcohol 9.9 g

Anyway, that's my input!