I actually found like a knitting or crochet mesh sheet that measures 10.5in by 13.5in and looks like it would be pretty good for scales 1/24 up to 1/35 and other similar scale ranges. Each sheet costs like 99cents at Michaels. They are fairly sturdy, yet flexible enough to easily work with. Try combing through your local art supply store, I did this the other weekend and have found a lot of great material that I am hoping to use on my build (whenever my model gets here). I found that there are all sorts of small trinkets and materials that other hobbies use that can be made into something for modeling, especially this kind of build.