Okay, this is really weird. I'm at work outside smoking a cigarette. There's this bush right by the ash tray with a bunch of REALLY bright lavender flowers on it. I was bored so I took my lit cigarette and put it against a flower. Where the cigarette contacted the flower, the flower turned a BRIGHT turquoise color! A lighter doesn't cause the change, neither does a lit match. Only a burning cigarette will do that. I'm wondering what compound/reaction is making this happen as it's incredibly neat. (Though the flower dies and falls off a few hours later). If I can figure out what is making this happen, I have an idea I'm thinking of that would be pretty sweet.