People could, perhaps, try using tracing paper as an alternative, like the old fashion MOD issue toilet paper which felt a bit like using sand paper.
Well this could be a new use for spend steel, berdan primed cartridge cases. Scrape to scrap
Veteran US Navy Seabees - US Army Corps of Engineers - American Legion Post 0867
" Only two defining forces have offered to die for me. 1.) Jesus Christ 2.) The American G.I. "One died for your soul, the other for your freedom! "