This is not really a great photo but hopefully I can add a little explanation. I made a little muslin sack a added a scoop of sawdust and I kept having to make it smaller and smaller to approximate size of the ruined original pin cushion. In the back to the right you can see a blurry disk. That is the wood piece that was inside. I did a gathering thread and wrapped the pretty velvet over the muslin, now including the wood disk that was originally inside. *It's a very lumpy rough piece of wood--not finished to any great quality. I had removed the cover plate from the box and turned it over. Directly through the bottom under the pin cushion was a screw that goes through a hole and through the little wood"cup" and then anchors the works by going into the wood disk. The screw underneath lies flush when it's in so the the piece can still be moved to open the compartment.