Captain Richard has a tutorial on modeling rusty metal.
Modeling
How To Touch Up Resin Walls
The Wargames Table has a nice article on touching up some basic resin walls to make them look more realistic.
Making Flock Foliage From Tea
Finally, here’s a use for all those leftover tea bags: making flock foliage.
Now if only I could find a gaming application for coffee grounds.
Making Movement Trays
This design for movement trays goes beyond the usual flat surfaces.