I picked up this Gas Grill Mat at a local Rite Aid drug store in the Summer Seasonal Dept. It's a simple black "carpet" with a rubber bottom. Eight bucks and 10 minutes with a pair of sizzors gives a perfect fitting non-slide black carpet-like surface for the tray. At 28"X36" it fits the tray in the short side so you can probably get 4 of them out of one piece. The wife drove the car last night and did not even notice. Item #GMB2836 Color Black www.drymate.com Made in the USA from some recycled material, the backing is waterproof, and it’s machine washable. And since it's made with Zorb-Tech it has to be good. :wink: I'm occasionally checking it to make sure the rubber does not stick to the aluminum too much.