I've exhausted my old supply of basing materials... =( Been using the same (large) bag of Heki static grass for ages, and some flock I don't even remember the make of. Repackaged that some 10 years ago or so.
Now, the once ample supply has been more or less used up and I'm at a loss as to what products I should buy. I want something matching the GW battle mat I'm playing on. My old stuff matched my gaming surface pretty well, by sheer luck:

The obvious choice would be to settle for GW products (as they ought to match), but containers are tiny and expensive. Also, there are very few hobby stores in the vicinity and they only stock overpriced GW, GF9 or Army Painter junk.
If anyone knows of a proper match between the GW battle mat and basing materials I would be very happy!