1. Sprinkle gelatin over cranberry juice in a bowl. Let stand 3 minutes.
2. Meanwhile, bring tomato juice to a boil in a medium saucepan over medium-high heat. Pour over gelatin mixture, and stir until gelatin dissolves. Whisk in parsley and next 5 ingredients.
3. Spoon about 1 tsp. chopped cucumbers into each cup of a 24-cup miniature muffin pan; top with gelatin mixture, filling completely (about 1 Tbsp. per cup). Chill 1 hour or until set. Unmold onto a serving plate.