0clzfishing 10 years ago in my science class we made smoke bombs out of KNO3 ( suger ) and some stump remover. Stump remover can be found at Steins of at fleet farm. to make the smoke bombs you NEED the powdered version of the stump remover. first you need to get a hot plate and a pan that is getting old or you can use a tin pie pan. the ratio or the suger to stump remover is 3 to 1 so that means that for every one cup of stump remover you have 3 cups of suger. mix the 2 evenly in the pan on minimal heat. when the mixture starts to turn brown you can shape the mixture but be carful because it will be hot. if the temp. of the hotplate is too high then the mixture will ignite so i reccomend doing this outside. When you want to ignite these there are 2 ways you can do so. 1 if the smoke bomb is just for fun hold a flame to it untill it ignites. 2 if you are using is in an airsoft war or paintball war, take the mixture when it is in its moldable state and put it in a cardboard tube. tske some fireworks fuse and put it in the smoke bomb.