back in the 70s, my brother went to a head shop and got some kind of liquid which was the stuff that they use to flavor the cigars cherry and iirc, blueberry. i put a drop of the blueberry on my cigarette and it worked quite well. i can’t find anything like that now-whenever i go to these or tobacco shops, they look at me as if i were from mars or something. can anyone help me find out where to get something like this?