The Too Fat Lardies site has a tutorial on making stands for trees and other foliage from old cds.
modeling
Green Stuff Sandbags
The Dark Future Games Blog has a tutorial on making sand bags from “green stuff” epoxy putty.
Making Trenches Blog Series
The Roundwood’s World blog has a very nice series on making trench system terrain boards. I’m inspired.
Of Hills And Mountains
The Colonial Wargaming blog has a discussion and photos of various forms of tabletop hills and mountains, from the “rugged” to the “stepped” to the classic General Tremorden Rederring style profile mountains.
Sculpting Chains Out of Green Stuff Epoxy
Dark Future Games has an illustrated article on sculpting chains from Green Stuff Epoxy.