Miss Fizzy wishes you a very happy Halloween, should that be your sort of thing. And while she cannot in good conscience recommend that you ever try to get any cat to wear anything on its head she will, grudgingly, admit that this makes a fairly serviceable pillow for your afternoon sunbeam nap.
Do mind the claws though.
The pattern is called Ensorcellment. Should you wish to annoy the cats in your own life, you can either buy it or join the patreon at the appropriate level and just download it as part of your membership (it’ll be up there for patrons through at least the end of next month).