I use black foam board and black acrylic cork. The foam doesn't come off.

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This is great way to build woods that are pretty solid https://youtu.be/GHtd_tBD7z0?si=_ZidbOLIRKIG4zeG

Not a great fan of Napoleonics, although I keep promising myself a bit of Peninsular activity one day, but that battlefield looks tremendous and may cause me to actually paint up my 6mm languishing British and French.

Wow, that is a beautiful table setup and some really impressive forest construction.