I've been experimenting with different methods for creating the standard 2" X 8" Flames of War Obstacles and have finally finished the first of the barbed wire and minefields. Thanks to all who provided comments on the prototypes.
First, the minefield. This turned out better than I expected and I'm looking forward to getting this on the table in the near future.
I used a piece of vinyl floor tile as the base and Liquitex Resin Sand to provide ground texture. The signs are made of toothpicks and craft sticks. The rest is a mixture of paint and washes. The scorched earth is created using pastel applied with a make-up brush.
Next, I focused on creating six sections of barbed wire. For details on the development process, please see the barbed wire prototype post. Below are some photos of the final pieces. I finally settled on using floral wire twisted around itself and then coiled around a pencil. (Thanks to Chris at Huzzah Hobbies (http://www.huzzahhobbies.com/index.htm) for suggesting a pencil as the right diameter for 15mm.)
The coils were primed grey, dry brushed silver, and then had a light coat of MiG Rust applied.