I know over at SBG they used their monthly collab, which everyone who participated had to buy. Then everyone contributed their QPs over the course of the month. Wendyzine ran it and she, I think, then zipped all of them up and gave them to all who participated. I didn't participate, but I might in one of the next rounds. I don't use a lot of QPs either, but it'd be fun practice at the very least.
It's a really fun idea, but I think you need quite a huge kit, like those monthly or seasonal collabs some stores do, to be able to do something like this. Maybe one of the 2 Scoops? The whole Li'l Toonz collection could be a fun QP set!