Modeling
Making Barbed Wire For 6mm Scale Figures
The Wargaming Site Blog has a nice photo tutorial on making barbed wire emplacements for 6mm wargames figures.
Making Stands of Trees
Dramatic Katastases has a nice, if brief, post on making stands of trees. I think I’m going to convert a few of the trees I have on washers over to this setup. They will be more stable and add a little something to the table.