There might be something in your house that's very interesting. Or you might have visited someone else's house and seen something exciting. Things in museums used to belong to people, generally. So what makes a "museum-quality" object? Age? Rarity? Quality?
Plan A: think about the questions above and bring us some stories.
Plan B: Read this article I wrote years ago, if you can't think of anything. It will give you ideas.
THIS article! (which didn't go out in the e-mail) http://sandradodd.com/museum
If you're reading this by e-mail and you need a path to the chatroom, click on the title to get to the blog, which has a tab up to the left with the link and password.