@Harris, I do like the towel on the head approach. But if you try that on a beach in Scotland you are likely to get your towel, pipe and head blown away !! LOL
Interesting. I've used a Zippo for years, and none of my rims show charring or even "softening". I find that a butane flame can cause more damage to a pipe rim than a Zippo. The butane flame burns hotter and since the gas is under pressure, you need to be careful how you aim. If you're using a Zippo with pipe insert, your pipe rim is practically shielded, and the heat/flame follows the airflow as you draw on the pipe.Zippo lighters are good for real windy conditions but their flame is unwieldy and are a bitch for the end of the bowl and they can make a mess of the rim of your pipe.