Request to Harry Potter fans for help - Harry Potter 30 seconds cards

I am trying to make a set of Harry Potter 30 seconds cards, but in order to get enough cards I need 2400 words/phrases, and I only have 833. Any suggestions? I've done all of the obvious ones, so please only really hard ones, and only from the books. If you could suggest a whole category that I haven't done, that would be great - eg. members of the DA, Ministry of Magic Departments, Spells, Potions, etc. (Done all of those.) Really small things that are only mentioned once or twice would be great; e.g. Euan Abercrombie, who was sorted into Griffindor in 5th year (done that one, but things of that order of difficulty).
Any help is greatly appreciated! :)

Do you have a card for nifflers?  I was very disappointed when I saw no nifflers in the movies!

Yes, I have Nifflers :) I've done all the magical creatures, as well as all of Luna's creatures... and I still have only 833 :/

Have you looked at the Harry Potter Lexicon?
www.hp-lexicon.org
It might give you some useful ideas.

Have you used Fantastic Beasts, Quidditch or Beedle the Bard at all? They're cannon.

Thanks - I'll check it out! :)

I'm only using the original books 1-7 :)