I just had to replace my first cutting mat also. Although mine didn't have a hole all the way through, just gouges on the surface that made cutting more difficult.
I'm using the old cutting mat to cover the opening in a sewing machine cabinet that has been opened but the sewing machine is still down inside. I have it behind my Singer 201 to give me additional "layout" space for when I quilt...That is, if I can convince Gracie to give up her new bed long enough for me to quilt it. :mrgreen: