I know DE treats some wrapper leaf with some kind of tobacco stem soup mix, but I've never got dyed lips from a nica rustica, MUWAT, or LP 9, and those are all pretty dark. I also recall reading a CA article where Nick Perdomo denied allegations of dying his wrappers, which makes this case with this particular batch of these peculiar. As I think about it, I kind of remember some color exchange from a 20th anniversary maduro as well. I'll wipe one of those tomorrow and see if it does the same thing to the paper towel.