Ashlee Alaniz is improving the tool before release.
Have a look at this pretty brush stroke scattering system made by Ashlee Alaniz for Blender.
The tool will make your 3D scenes look painterly and make you feel like a true classical artist. Alas, you'll have to wait a bit more before you can try it out, as Alaniz is getting the add-on ready for release.
Meanwhile, you can see what you will be able to do with it on her X/Twitter: