NO this is NOT safe. just5 the name 'Make your own flash paper' I know. a long time ago, I was part of an exposure community. and someone wanted a tut on how to make it. it was deemed too dangerous to give the tutorial for. But after awhile it was given anyways, and I read it. The stuff is hard to get a hold of and EXPLOSIVE.
yea you do need flares i think. I saw some youtube video on it and it seemed more expensive to make them then to buy them.i wouldnt try doing it anyway.