In a FMQ class I took, the instructor suggested that we buy a clear desk protector at one of the Office Supply Stores. I got one, and use painter's blue tape to attach it to my sewing table. When I got it positioned the first time, I marked where the needle was and cut a small hole with an exacto knife. In addition to being slippery, it covers the open areas around my machine since I don't have a custom piece to fit around it when it's recessed in my cabinet
. I think the size I purchased was about $12.