Smash some sour cherry stones (I took about 10) with a hammer.
Layer all ingredients in a large glass, pour the cherries first, then the spices, the rock candy and finally vodka and rum over the top so that the fruits are covered. Close the jar with the screw cap and let it stand for 6-8 weeks, shaking carefully every now and then so that the rock candy loosens better.
After the ripening period, filter off and pour into bottles.