Sand and snow ammunition was used by some Native American tribes. Instead of powder and shot they would substitute dirt or snow and grass.
The male Paiute witch Tibo'o was the first to develop the process. He tried to teach it to others, but it required years of training and the proper sacrifices and rituals. Cousin Belial was so impressed by what Tibo'o had done that he intended to sponsor him for Faction Paradox membership rather than letting him become part of the Remote. (PROSE: The Book of the War)