I made my own smoke bombs once, when i was at school & doing A-Level Chemistry we were using the chemical needed (I forget what it is but it was white chrystalline stuff) so i nicked as much as i could realistically get away with in the food bag from my lunch & mixed it up when i got home
they worked pretty well (filled my garage) but I had to light them with match heads & Lynx Deoderant
FUB