1/4 cup green cardamom pods, shelled, husks discarded (about 2 tablespoons of seeds)
3 tablespoons whole cloves
4 large black cardamom pods, shelled, husks discarded (about 1 tablespoon of seeds), optional
3 large cinnamon sticks (if you have the kind you get at Indian stores, it's about 3 tablespoons of cinnamon bark bits)
You should be able to find all of these at your friendly neighborhood Indian market, gourmet market or an online source.