Terragenesis has an article on building laboratory equipment for mad scientists. The photos show an amazing use of various household and electronics bits.
modeling
Miles Of Barbed Wire
Tim’s Wargaming Blog has a photo tutorial on making “36 Miles of Barbed Wire.”
Modeling A Shack From Scraps
This is a great video on modeling an abandoned farmhouse or shack for your wargames table.
Making CD Based Scatter Terrain Bases
Making Simple World War II Buildings
Matakishi has some instructions with photos for making World War II era buildings out of sheets of cork.