It is a good idea to use quality paper with them as the colour from the markers can go through thin paper and ruin your designs. This technique is used to show light and dark areas using dots.

By using tracing paper, the child can more easily follow the design he or she wishes to make ... Next, kids will trace the image without picking up their marker Have the child use a marker ...

Researchers transformed red marker ink into graphene-based circuits using a laser, enabling low-cost, flexible electronics on ...