Hi, metalwork teacher here, I have been permitted for a few years now to make knives in class. I was using an old bandsaw blade from a closed down sawmill for all my knives, I don't know what it was, but it was easy to work with and heat treat. I have run out and that source has dried up. My budget is pretty low, so buying blade stock is expensive and I see quantities are limited in many places. I am looking for ideas on where I might be able to get flat stock to recycle into blades. I have used chainsaw bars before but they make a pretty thick knife and I only have two belt grinders so I can't tie them up for long periods having students grind them thinner. My blade smith unit has always been simple, minimalist to give them a taste of that artform. I don't really have the ability for them to forge them out of bearings and that kind of thing either. and circular saw blades are pretty thin. Any suggestions on things out there in this world that come in or around 1/8"-3/16" in flat form I could recycle into knives?