e-bay theres peruvian torch or san pedro, ive only ordered san pedro and its kicked my ass everytime, slice the cacti put it in a blender w/equal parts of water, blend for a few mintues untill its bubbly neon green, boil for a couple hrs. it will bubble up then go down, take a cotton shirt, put over the blender push it down a little, and strain, squeeze the cacti remains in the shirt, drink in hour intervals, *remember a pound and 1/2 (less than a kilo) has the same amount of mescaline than 4peyote buttons!