I like these because they use xylitol, which is actually good for your teeth (the neato and ever-helpful guy at the health food store told me about it when I got my wisdom teeth out). And you can make it any flavor. I love this website, the burlap bag :).
There are two main types of breathing in Kundalini yoga -long deep breathing (good for scuba divers!) and Breath of Fire, which detoxifies your blood and intensifies the good your yoga does you - here's one explanation of how to do it. Kundalini Yoga Video: Breath of Fire with Anne Novak