How to model railroad scenery using extruded foam Are your hobbies building model trains? Well, I hope you are building your own model sets the way you want to, but if you're stumped in the model railroading process, check out this nine-part video tutorial to see how to model railroad scenery using extruded foam. If you aren't into miniature rail transport systems, you will be now. Your landscape has to look good for your trains, doesn't it? You're going to have to get some extruded foam for ...more