Decided to take a few new pics of what I was referring to. All these are my early attempts at creating decent looking landscaping for my railroad. As everyone knows practice improves the results.
Not really quite sure what I was trying to accomplish here, except to represent a dry rocky area between the tracks. This is cotton batting glued to the plywood base and covered with a wash of mortar mix. Apply the mortar wash until you get the desired look and thickness. This went down before the ballast and creates a ridge line to keep the ballast contained.
Another use of cotton batting glued over foam, painted dirt brown sprinkled with ground cover while wet. These are two sections which are easily lifted off the layout for maintenance. The batting provides a soft edge which tends to hide the seams.
Just another view of a batting hillside. Grayish because of the lighting. Just built up a hill from foam, carved to general desired shape and covered with batting. Pretty light sprinkling of ground cover. Nice thing about this method is your carving skills can be pretty bad, the batting hides all the goofs.
An example of batting used over foam to create a "mountain". This is intended as background just to give the impression of a background mountain. Hard to see, but there are 2 pieces of foam here sandwiched together. This entire 6 foot mountain section lifts out. If I was a little more careful I would have tucked the flap down to cover the seam. The removable mountain came in handy when my new BB had a larger overhang than I anticipated and crashed into the mountain side. Soft crash no damage - it just stopped. I'll go back in and alter the problematic 3 inch section so I can run the BB. Just need another 1/2 inch of clearance. Another nice thing about this method is when I have clearance problems I can simply peel back the batting and carve out a bit of the underlying foam and lay the section back in place.
Using coffee grounds on the Burr Oak to add texture. Its a wire arbor painted with thick latex sprinkled with the coffee grounds.
Another use of coffee grounds as dirt in a garden scape.
These are coffee grounds poured onto the decking to simulate dirt. Since I did not really know how it would turn out nor if I would like its look, I left it loose. Of course my grandson loves to play trucks in the coffee.
Play sand spread around a terminal yard to simulate the stone normally in place. Again not glued down but left loose. I think coarse sand would be a better option here. Another play spot for my grandson. The asphalt was laid using fine cinders/glue method used by Eric Siegel.
As to costs - the CEO and I cannot function without our daily cups of Java. So rather than tossing or mulching it - it goes into groundcover and bark - free as far as I am concerned. Cotton batting is a few dollars a yard - I can cover a lot of area for $10. I buy gallon quantities of white or yellow glue to hold the batting down and the gallon of brown latex paint was custom mixed at Walmart for about $10. The batting soaks up the paint - buy the gallon. The ground cover will stick to the paint as it dries saving on glue costs. Sand used to be pretty cheap - I had some left over from a gardening project. The mortar mix is also cheap, but again was left over from a honeydo project.
I am a big fan of the batting over foam. Its easy to work with, easy to install trees and easy to move around if built as a module. Saw the technique used on the web, but don't remember by who, otherwise he would have gotten credit as well.
Hope you all find this helpful.