I was at Lidl a few weeks ago and they had these 1 metre x 2 metre fake grass mats. On the underside there are rubber lumps for grip. I guess they are designed for gardens and such, but being a modelmaker and wargamer I immediately bought two of them. They look much, much better than green felt. The size is a little awkward, it is long and thinish, but it will do. All in all, very pleased with the purchase and how they look. It will make my wargaming event at school easier to handle. I only wish I had bought more.