Cobblestone Road base for models. Based on http://www.thingiverse.com/thing:126575 (thanks, mate ! :) .

You should print the two parts andassemble with glue or screws.

For the nice effect on top, you spray black paint (does not really matter what type of paint) and then you wipe the excess paint off with a paper towel.

The truck on top is not included in this model, but you can get it from here - https://www.indiegogo.com/projects/reviving-the-cars-of-the-past-with-3d-printing