A Hell-Fire Cure for Baldness.
This new edition doesn't change a word of the original story (I think it stands up pretty well), but I did add a nice little piece about the origins of the story and its long and varied publication history.
This has long been one of my most popular short stories. I hope you'll check it out if it's new to you.
(PS -- I had fun designing that cover. It's not New York publishing-house quality, but I think it came out pretty well and I learned a few things in the process of creating it. You can't ask for more than that.)