Here's a picture which includes all the different types of terrain, currently in my terrain collection (it also includes half of my human child collection):
The mat: The table itself is covered with a cloth terrain mat from Deep Cut Studios.
The roads: The roads are built from flexible sections, which I made using felt, caulk and cheap craft paints.
First I cut the felt in appropriate shapes, I used a mix of templates. Then I pushed the caulk into the felt. I used the cheapest dark brown acrylic caulk I could find. It is important to use acrylic caulk, because you want it to remain flexible after it dries and you want to be able to paint it.
This is what it will look like when dry:
Note that the surface of the road sections is rough, which is important for the final step of painting the sections. When painting the sections, I took advantage of the fact that the caulk I used was dark brown. This allowed me to skip the step of applying a base coat, and I went straight to drybrushing on a lighter shade of brown:
I might add some flock along the edges later, but for now it will do.
Woods: The bases of the woods are flexible and made with felt, caulk and paint, just like the roads. The trees are cheap wire and clump foliage trees I bought from a Chinese company on ebay.
With the base of the woods I went ahead and added flock patches. This was done after the drybrushing step, by applying additional caulk and pushing flock into the still wet caulk. The idea is that the flock will stick to the base and that the base will remain flexible. I guess time will show if this works out as intended.
Fields: Fake fur, cut unto rectangles.
Houses: These are free paper models that I found online, printed on cardstock and folded.
Hedges/field stone walls: Craft sticks with static grass and clump foliage and railroad model ballast glued on.
