Like DIY percussion caps, learn how to make your own homemade black powder. There is a learning curve like everything else, but it is not as difficult or dangerous and some would make it out to be. You can make very fast and relatively clean black powder with a small ball mill or rock tumbler, a small digital scale, sizing screens, various and sundry containers, 70/30 isopropyl alcohol, DIY charcoal from willow or grapevine or mesquite or mimosa or a number of other woods, and potassium nitrate and sulfur of good purity. Five dollars a pound versus I cannot find it and $30 a pound is a pretty good motivator.. Have to deep your work area clean and be double sure there are no ignition sources close by. Lots of good info on the internet. Try it as you just might like it!