I accomplished something I have never seen done. I blew a smoke ring so large, people walking past the smoke room came in to watch its path and death -- and were in there for a good 30 seconds.
It had a diameter of ten to twelve inches, and it was three to four inches thick.
It was beautiful. I was amazed. I admit it was mostly by accident. I need to learn how to do it again though. I have only seen smoke rings bigger once: