Yesterday evening just after watching the latest episode of Game of Thrones I finished yet some more terrain for my gaming board: three modular forests.
The single trees can be taken off to make place for regiments and the like.
On the back of the forest bases I added a thin piece of cardboard and painted it dark brown on the visible side. Thus the bases can be lifted without the trees staying on the tabletop or dangling in mid-air.
Furthermore, I kept the bases themselves quite flat so I don't have problems placing the regiments smoothly.