My layout now needs deadfall on the ground to make it look more realistic. How do you make deadfall?
A word of caution about using natural materials: You may want to find a way of killing *all* potential critters before putting them on the layout. I have personally experienced: 1) Mice eating down trees made with natural weeds. 2) moths laying eggs in some natural moss I used for ground cover. I discovered the larve a year later when I was tearing out some scenery (and my mom had been complaining for the same year about moths in the house and laying eggs and chewing holes in the side of cereal boxes). 3) fungus/mold gardens growing on my hillsides.