1)   Sketch Master plug-in 3.11
This is a manipulation tool for the creation of realistic looking hand-drawings derived from photos. You can simulate various tools such as lead pencil, ink-pencil, crayon, charcoal, airbrush, etc.

 2)   AKVIS Sketch 8.0
AKVIS Sketch is software for conversion of photos to pencil sketches and watercolor drawings. Surprise your friends with realistic color and B&W drawings that imitate the technique of graphite and color pencil, charcoal and watercolor painting.