Extruded Foam Sheeting (Hardware Store)
Thin Wood Sheet (Masonite scrap, plywood)
Modeling Grass (Hobby Shop)
Modeling Trees (Hobby Shop)
Green Paint (I used Latex wall paint, however better paints are available)
Ready-made Road (Hobby shop)
Ready-made Building (Truck depot in HO scale from local Hobby Shop)
Glue(either Scenery Glue from Woodland Scenics, foam glue from a craft shop, or Liquid Nails from a hardware store)
Accents(cars, telephone poles available at Hobby Shop)
You can find the Grass, Trees, and Ready-Made supplies at most craft stores or Hobby shops. I got my supplies from a local hobby shop. If you want to order the supplies online, A good site is www.modeltrainstuff.com. They provide tons of materials for dioramas and model train layouts. Browse scenery and different scale buildings to match your dioramas needs.
Foam Knife (Woodland Scenics, Hobby shop)
Sandpaper (rough grit for terraforming, fire for sanding wooden base, hardware store)
Hot Foam Cutter (Hobby Shop, Craft Store)
Step 1: Base Foam Layer
Step 2: Layout Building and Road
Step 3: Terraforming
Step 4: Paint the Town Green
Step 5: Time for Grass
If you want your grass to stand the test of time better, you can use scenic cement from Woodland Scenics. I use this product heavily on my layout, so I had extra cement sitting around. Spray it in a spread pattern on your grass from about 2 feet away. Do this with the diorama on a shop floor or outside to that cement that misses the diorama doesn't ruin your floor.
Step 6: Roads and Buildings
Adding the building is a simple as placing it where it belongs. You can glue the building down if you so desire (I did not because I was borrowing the building from my model train layout.)
Step 7: Final Touches
You can use these skills to build dioramas of any kind and any size.
The final picture is a picture of my model train layout, which contains the same style of terrain that is shown in this instructable!