I had some heavy duty non stick renold's wrap for grilling that is a very large sheet so I decided to give it a shot. I just tested this out for a minute and it works pretty well and is the lowest friction surface I've used. My mouse had a little bit of trouble tracking on the kinks, but it barely tracks on plastic the lod is so low.

It seems like it might be more work than it's worth, but I figured someone here might want to try it out or at least use it in a pinch if they have no pad.