Browsing the Battefront Homepage you will find the Modeling section and some things on "How to do..."... Christmas brought some Balsa Wood to me and so I started redoing the tutorials from their webpage.
As I am also building a 78. Sturm Division Unit I am in need of some trenches and stuff like that. The minefield from the BF webpage looked easy and I also would rate it as being easy.
Scale for this one is 20cm by 5cm. This is also the exact sizing BF gives on their webpage. As Balsa Wood is a light and easy to work with wood you can take the Toothpicks/Partysticks as they are and simply press them into the four corners of the balsa piece. I also put one extra in the middle for the signpost. Afterwards I took a Miniature and cut the "posts" down to approx neck high of the miniature.
Mix the miliput or any other epoxy you are using and define the parts of the mines and a possible crater of an exploded one. The mines you will do with a bigger and a smaller piece which you roll into ball shape and first press the bigger, than the smaller one on top of the bigger one. The crater is a larger piece there you simply make a ring and then push down the size. If you have, like me, this cutter knife you can scratch in some lines into the miliput so you get a bit more texture to your crater.
After this is done you can either start painting and flocking or like me use some filler for more texture on the board.
After drying... apply some colour and flock to it.
Connect your wire around the outlining poles. And ready you are. As I am using a 120x120cm gaming table it suits for me to do six of these to get a whole table covered. Easy to do and doesnt take much of a time