I have a stockpile of polystyrene packing and low & behold, had a bit that was spot on.
Grabbed a bit of thin MDF board that came out of the back of a set of draws to use as a base, and used left over plywood.
I got a polystyrene cutting gadget from a cheap shop ages ago & finally used it to slice the corners off and get that familiar shape.
Carved out the gun embrasure, assembled the flanking wall and rear door protection & stuck it all down with loads of PVA wood glue.
Once dry, I used an acrylic gap sealer to grout the surface & put in a bit of texture on the roof, and mark in the formwork that would have shuttered the concrete during construction.
All in cost $6.95 for the sealant- zip for the rest !
Once the outer is dry I will paint it with a grey base and then do a bit of landscaping around it.
I can assure you though..............NO barbed wire
