Oh, that's right. I recently re-read that post, for some reason or another. With the blue smoke and other types coming out. It was rather comical, to say the least, and very creative. I was trying to figure out what you would use the huge, spider web in the sky thunderboomers for. The sparkler and smoke bomb do make sense.
As for the hand experiment, luckily I learned the hard way, but not as hard as it could have been.