Final answer:
Artists use a variety of tools and materials to create tones in pictures. Brush and ink artists use brushes, iron gall ink, and dip pens. Cut paper artists use scissors or X-acto knives. Crayons are used for smooth shading and blending, and pen artists use different pens and inks.
Step-by-step explanation:
The tools and materials used by artists to create tones in pictures differ depending on the technique used. In the case of brush and ink, artists would use brushes made from materials like bamboo or feathers, along with iron gall ink made from tannic acids and iron salts. They would also use dip pens to transfer the ink to the paper for drawing. For cut paper art, artists would use scissors or X-acto knives to cut out shapes from colored paper and create different tones by layering them. Crayons are another tool that artists use to create tones, as they allow for smooth shading and blending. Finally, pen artists would use pens with different tips and inks to create tones through line work.