I collect them, have a couple of old gallon jars full. Most of the thread is still good. I have used a couple of the large spools with not so good thread as door nobs for my fabric cabnet. Just coated the thread with Elmers glue, let dry. drilled hole in door and ran a 3 1/2 inch bolt through the spool and door. Works great and another deco for my room. LOL