Is there are cheap alternative to the BOFA plastic ruins?

[Stormwind]

Occasionally I look about on ebay for the very nice looking rubble / ruins that comes with the BOFA set.  But generally a single sprue goes for over £5.  I ask less for making scenery, more because it would be lovely to have little rubble piles about the bases of monsters / machines in WM.  I've got some tiny mosaic tiles but they only really look good on warhammer bases.

I was also thinking of maybe getting ahold of the branches here:
http://www.ebay.co.uk/itm/Citadel-Woods-Leaves-and-Branches-B-/230775305296?pt=UK_Toys_Wargames_RL&hash=item35bb47b450

And using those as trees for some bases, especially elves.

Has anyone else had similar thoughts?

[marell le fou]

The Epic ruins are very common and might fit for bretonnian or maybe elves ruins.