Since my Pyrex collection is still small(ish), I'll try to catch up and show you a bunch of the pieces I've found in the past few months.
My second time buying Pyrex was through Craigslist. A man was selling his mother's things since she moved, and I got these six pieces (only one was missing a lid)! Three Butterprint bake, serve and store casseroles and three Gooseberry round casseroles (I think, I get those types of casseroles confused)!
They're in perfect condition! I love them :)
I remembered that at a used bookstore in town, they also sometimes have random housewares stuff. I found this almost right after I walked in the store! A Colonial Mist cinderella bowl.
I had trade money left over from reselling some books one time, so it was sort of like getting it for free!
I found this Snowflake divided dish (with a lid) at the other bookstore location. It's so pretty!
A dance theater where I used to take trapeze classes had a big rummage sale so my husband and I took a walk to go check it out. Right away I saw these three pieces. Two Verde oval casseroles and a fridgie! $5 total! I was so excited :)
That's pretty much the rest of my collection! I have a few other things I need to take pictures of so I'll post those eventually :)