Back in Win 95 days, there was an "Icon Editor" program, and I can't remember where I got it, but it wasn't a "Windows extra." You could create your own icon by editing individual pixels or groups of pixels.
I created an icon showing the image of a big, massive-gassive cow-plopper, with little flies buzzing around it. It was really a good "art job!" Although some might lump it together with some of those items by Maplethorpe. You know -- the Virgin sculpted from elephant pooh.
The icon caught on around the office. I passed it around as an icon for a folder-location -- where you can "store your Shee-it."