This is what I've been working on lately. I'm not sure what vehicle will be included, so far I've only thought about the terrain and so on..
Some inspiration:



Some references:
http://www.missing-lynx.com/library/german/pztrap_dmourtizsen.html
http://en.wikipedia.org/wiki/Dragon%27s_teeth_%28fortification%29




Some model-building:














The I-beams (steel beams) were made of strips of plastic sheet and Evergreen I-beam lenghts:




