mair0n asked: For the Anon asking about the cosplay, unfortunatly I couldn't find the exact pattern I used for my Wiccan cosplay, but poncho patterns are very good for mimicking Billy's cloak. B5715 pattern from butterick was the closest I could find. You need a poncho with a cowl-neck that can be altered to look like Billy's by making it stiffer. If you aren't satisfied with that one, keep searching. Feel free to ask me any questions.
Thank you! Hope this helps, anon!