Food for thought from a former smoker (yeah gentlemen, I'm still going at it and way over the hump):
-Tobacco ash contains tar that will color some materials and in any case is greasy, tacky and not so nice.
-It also contains nicotine. Now this drug is weird. If you inhale it, you're fine, but ingesting it may kill you.
I don't know if I'd want either on any of my razors.