Building A Ruined Defensive Wall

A Year of Frugal Gaming Blog has a photo tutorial on making a ruined wall from plywood and other bits.

Making A Wattle and Daub Wall Wargaming Terrain

Here’s a photo tutorial on making a wall that simulates the wattle and daub building technique.

Sculpting An Urban Wall

A nice tutorial on sculpting and then making a mold of an urban wall.