dont kill your self.
ingredients:
- 3 parts sugar
- 1 parts potassium nitrate (Salt Peter)

the sugar is easy enough to get. the salt peter on the other hand just requires more effort that going to the cabinet. to find potassium nitrate you could try ebay, or you could try random science sites like this one, and of course froogle.
if you dont feel like buyin it online, large pharmacies and vitamin stores will have it as well but labeled as saltpeter not potassium nitrate.

process:
now you gotta figure out how much you wanna make. for every 3 cups of sugar you would add 1 cup saltpeter. next you wanna take the cups of sugar and potassium nitrate, and put them into a shitty pan/pot (your going to ruin the pot). now you gunna wanna heat over the lowest flame you can get until the mixture takes on a think gooey, honey texture. after it reaches this form you will need to take it off the stove and start filling your mold. the best mold would be bottom half of a beer or soda can. so just cut the can in half and use the bottom as the mold. right after you pour the mixture into your mold you will need to toss in several matches into the mixture and one match that is sticking up for the fuse. if you wanna take this seriously you could make your own real fuse, check here for details. anyways, let it harden and you will then have the ultimate smoke bomb.