Thanks for the suggestion of the mouse pad. Often times the obvious is invisible. Thanks also for the spelling correction.
I did pick up a square of rubber at the hardware store referred to as "plumber's gasket", which was about 6"x6", so a little too narrow, however, I might be able to make it work. It's has a hefty, yet flexible feel, so we'll see. Thanks again.
Capital Aikikai - Frederick - Maryland