Sometimes, though, you might just want to do some freehand pen-and-ink drawing using such "captured colors." That's just what Scribble's upcoming Ink color picker pen is designed to let you do.

The team used a ballpoint pen filled with the ink to draw lines on various substrates such as paper, plastic, and a stretchable SIS film. Once the ink was dry, ...

If pen and ink were not available, he had recourse to soot, coal dust, and coffee grounds. Huge made more than 4,000 drawings, which range from moody, dark landscapes to caricatures to ...