Ink stick is one of the important tools for painting and calligraphy, and it is often used for ink painting or writing with a brush, so if there is no ink stick, you can consider using other tools instead. Ink block is a common tool for grinding ink. You can drop water on the inkstone and grind it into ink. At the same time, you can also use ordinary pigments or watercolor pens as ink.
Before using the substitute, we should carefully study and understand its usage, so as not to affect the quality and color of the artwork.