The Quisca Cactus, which provides the magical body for the rainstick, grows in the Atakama desert at the foothills of the Andes. These cactus live in forests and hold water while they are alive. After they have completed their life cycle, their body dries out and can be used as this magical instrument. The spines are removed, turned around and inserted into the cactus which is then filled with pebbles of different sizes. If you turn the cactus instrument around the pebbles flow over the spines at different speeds, creating the wonderful sound of rain.