Zip ties sound good but again it's plastic. I thought about using some type of braided steel wire but have nut looked into how to attach it. The "buffing" feature of the wire cup brush holds my interest. Seems easier to clean the concrete than scrubbing or hosing it off. (no pressure washer). I see what you say about the strands flying off...guess I wear my tall boots and thick socks for this operation. Thanks for your input! May just have to bite the bullet and try it out. Wonder how it would work for removing paint from wood????