Here is a tumbler tip from @babelsmit - “To prevent flat pieces from sticking together or to the walls of the tumbler I use metal paper clips (not coated)! Super easy and also helps me find my pieces in the steel shot afterwards. :) “ 🙌 this is great! Thank you for sharing with us!! I use my tumbler all the time and love hearing tumbler tips! #metalsmithsocietytumblertip #jewelrytumbler #jewelrytools