What are some creative solutions you have for canning weights?

sudborough Posts: 36 ✭✭✭

If you don't want to or can't purchase commercial "weights" what's your go to solution? I've heard of baggies of water, a smaller jar nested inside (both for fermenting not canning), rocks....I was recently making some kraut and used silicone muffin wrappers? Would love to hear more ideas!