In N.Z. the plastic shops carry a rubbery mat to put in drawers and stop stuff chipping in R.V.'s and motorhomes. It comes off the roll in 1.5m width by whatever length you desire! It comes in:
off-white (you may be able to digitally print on it)
grey
light brown
yuk green

It is lovely and stickyish so that the cards cannot slip. It even makes it hard for those who like to "tweak".
Dunno where you'ld find it in other countries, but everyone whose played on mine think it's great.
I actually drew a scene all over my white one with letraset pens and it looks pretty good...