Help- I have a situation where I must create the odor of rotting garbage and human waste. No, this is not a joke, it is a paying job. (Not much, but a job). I need to cover an area about 100' x 100' for 5 seconds or so. I can launch a chemical into the air, fan out a powder, or? Any ideas are appreciated. Obviously it must be non-toxic and a MSDS available.