This has really been diomaking on a budget - materials are all leftovers from houserepair - a piece of drywall, some wallpaint, a piece of MDF board, catlitter, groundup real brick and drywall and oils and washes.
All in all, price - 1$ - me like :-)
Heres a inprogress shot:

And here is the finished base:



Now i "just" have to paint the figures ...

