I purchased a tool awhile back to rough up forms. It looks like a wire wheel on a stick. It worked okay, but the handle just broke off. I wasn't applying very much pressure, but it just broke. I'd like to maybe get another one, but I don't remember where I got it. I know Bill Yox and the rest were talking about it at the Yoxathon and most had one, but I don't remember what it was called and where I got it.