- Household Chemical Smoke Bombs - Here are a few recipes for some great smoke bombs! - 3 parts sugar - 6 parts magnesium sulfate Place these into a can and place the can onto a low flame until they melt. Embed a line of matches for a fuse before it hardens. Four pounds will fill a city Block! - 3 parts sugar - 6 parts magnesium sulfate - 1\2 part peices of rubber - 1\2 part flash powder Same procedure as above. Make sure that the flash powder gets mixed in well with the other chemicals.