I had a long period of time in which Sculpey clay was my go-to medium. I found this photo from March 2007 of a thread cutter made from layered oven bake clay surrounding a wheel cutter blade with a brass wire loop. I formed each side of the cutter using a mold that I made, baked it, sanded it, then assembled it, probably with glue (tsk). The loop was properly made with a mechanical connection: prongs that went into holes in the clay.

I made several of these at one point. If I were to attempt to make them again, I would make sure there was a mechanical connection holding the blade between the sides. I’m sure the glue didn’t hold up to time or dropping.