I've compiled a list of the most current scholastic articles and published experts on puffskeins, as requested. Unfortunately, it's not a lot. Apparently puffskeins are not a hot zoological topic. Let me know if there's anything else I can do to help.
You don't happen to know if prolonged proximity to thestrals causes nightmares, do you? Are there any other plants or animals you know of which might have that effect? If you have any ideas, I would appreciate it.