This was created randomly after making the CFS latch slider that had a hex shaped hole and I thought if I could somehow utilize it and add something to it. Introducing the fart my brain produced and now we have a little flag as an accessory to your CFS unit. I have added a few flag editions to the project file to choose from. The whole flag is assembled in parts and slots into the CFS latch which is available here:

https://www.printables.com/model/1417482-creality-cfs-slider-latch-2