The base is 1.5 yards of 60" wide fabric. Features include: an island, a lake, a river, beach, bushes, race track, parking lot, farm, roads and a round-about, and I plan to add a landing strip some where.
The lake and river are made of shiny fabric that looks like water. The roads and race track are gray canvas (gray felt would have worked much better because the edges wouldn't fray. Felt is also sold by the yard) The grassy areas are different textures and colors of green fabric. (Halloween is a good time to find fun textures of fabric.)
I very unscientifically cut out the pieces and sewed them in place.
I am not finished with this yet, but right now, the pieces are just zig zagged in place. I'm going to go over the edges of the road with a satin stitch or cover the edges with ribbon at some point. Like I said, felt would be ideal for the roads. The dashes on the roads are pieces of yellow ribbon attached by a continuous stitch.
Here's the beach. It's just tan felt stitched over the water and grass. The bush you see is made of strips of felt sewn in the middle. I added other bushes that are pom poms hand stitched in place.
The farm plots are squares of fabric zig zagged in place. The brown fur is really cool because it looks like plowed fields. I plan to add green ribbon pieces as plants and to frame each plot in green or brown ribbon to hide the edges.