Cartoonist David Rees Launches 'Artisanal Pencil Sharpening Service' 5.89K Adrian Chen 07/24/10 12:33PM Filed to: things we actually like things we actually like david rees Get your warn on David Letterman Pencils For years, David Rees wrote the amazing clip-art comic Get Your War On. Now he's launched a service where you can send him your pencils and he'll sharpen them. Also: a campaign for him to sharpen pencils on Letterman.