Great idea! It would not work so well if you have to see through the ruler to line up registration marks, but otherwise, a great solution. I use a really grippy, clear, self stick sandpaper like Handi Quilter sells, as I use the etched markings on my ruler templates. That shelf liner also works well for hanging onto your quilt to move it for FMQ'ing , if you just use a couple of small scraps under your fingers, instead of gloves.