I was snooping around for something totally unrelated and found this interesting thread about using papercraft versions of terrain, there's a Fortress of Redemption in this one for example. An interesting alternative for anyone trying to hustle together some terrain on the cheap.
http://www.dakkadakka.com/dakkaforum/posts/blog/375380.page
Subject: Paper Terrain 
16th March 2013, 11:28 am