I have seen many shoes like that at thrift stores. They are pretty common to see at thrift stores actually.
Although, if your luck is anything like mine, when you are actually looking for them, you will not be able to find them.
For example, when I was looking for pinstripe pants for Sweeney Todd, I could not find them. But I know before I needed them, I saw them everywhere, so when I had to find them, I thought "Oh, pinstripe pants, those shouldn't be too hard to find." But when I went actively looking for them, they were not readily available. Of course now that I don't need them, I see them everywhere! Same goes for leather trench coats. lol