Okay, I want to go to the hardware and/or surplus store again! This brand new book is great fun. I have used rubber grommets, rubber O-rings, and pyrex connectors as parts of jewelry — and seen cotter pins and other non-jewelry components used in jewelry. The author of this book, Nichole Noelle Sherman, has a collection called Softhardwear, which she describes in depth in this book with many examples. Some pieces are heavier than what I’d wear, but still fun to look at. Check it out at your library, maybe….