The body is a clear plastic water bottle. Head is a cut down funnel. "Face" is a cut up flimsy plastic cup that turned out to be perfect for this project. The crane is a mixture of old lego bionicle parts. Rest of it is a mixture of
40k bits, green stuff, and plasticard.
I really hate the engines and plan on replacing them once I can find or make something decent. Fairly happy with the rest of it as it is my first pure scratch built project.
Edit: It is considerably larger than a Battlewagon or Landraider, but not overly massive. Forgot to do a comparison shot.
Here's a link to the official
GW rules.
http://www.games-workshop.com/MEDIA_CustomProductCatalog/m1180081_Ork_Datasheet_-_Minelayer.pdf