Last night, I filled my pipe with Boswell's Chocolate Cream since I was out of mint chocolate chip ice cream. Suddenly, the thought of Camel Crush cigarettes gave me a splendid idea. I ransacked my medicine cabinet for some peppermint oil, and put 6-7 drops on a paper filter, loaded it into my pipe, and had one of the greatest smoking experiences I've ever had so far (to be fair, my smoking experience is short, so that's still not saying much). To people looking for a "menthol" taste, I highly recommend this method. It's much better than putting peppermint alcohol/oil in the tobacco. It's stronger, and you get that minty effervescence much stronger. If you smoke filter-less, maybe consider using a thin strip of a thick paper/cloth to hold the oil, a small enough that it doesn't impede airflow, but thick enough to be easy to remove and hold the oil without it dripping out. That's my little trick for varying flavor. What are yours?