With vintage ones, I put them in big Mason jars for display. I just can't seem to throw out such a pretty part of history. The newer ones (the plastic ones), I've been throwing away, but I have been keeping the ones from Superior Threads because they look similar to the vintage ones. I'm in the same boat, I don't want to pitch them, but I just don't know what to do with them :(. I'll be watching this to see what others suggest!