Snake Hook

Edit (March 3rd): Just found out that Blender 2.77 RC has an improvement for the Snake Hook brush: “Improvements for snake-hook that allow you to drag out long extruded segments, and rotate the snake-hook brush using the new rake option.” Didn’t know about the rotate option and haven’t tried it in any of my experiments yet. 

The head with horns was sculpted mostly with the Snake Hook and Smooth brushes alone. Form sculpting is a great way to explore sculpting brushes.