Making use of multiple modifiers and projection painting this tutorial covers the entire process of modeling and texturing an old, wooden barrel in Blender.
With the release of Blender 2.49 comes the ability to stencil images onto your model via projection. This tutorial goes through the process texturing a head model with projection painting.
Using Blender’s Materials nodes this tutorial describes how to use a stencil map to blend two seperate materials. In this case mixing a simple grey shader with a mutated, gnarly shader!
This tutorial goes through the process of modeling and texturing a simple, Steampunk telescope using Blender’s modeling tools and Material Node system.