Ah, the floor mulch stuff. You reckon that would work? I always thought it would probably be too regular due to the shapes and the gaps between them. I suppose you could combine it with the plaster bandages though to hide the edges. Might be worth a try as I still need to make some big cliffs for a board edge.
Gotta love that Hornby product page. £2.25 for Medium Cork Bark, what the hell is medium cork bark? I can accept Medium as a size given for t-shirts but not for modelling materials!