Interesting...and of course I had to google painting with smoke to see what it's about. Called fumage...quite interesting and a practice that goes back a LONG time. I'd never heard of it...but then I'm not an artist. I had heard of a sight smoker...as my H was a sniper at one time for a swat team...but had never seen one, so thanks for those links schmism. A pillar or taper candle seems to be the preferred method, from what I read, and probably cheaper lol. Anyway...ya learn something new on this site all the time. Good luck cactus lady with whatever you do on this.