1, the first is to prepare the material, which can be drawn by yourself. Here, the hand-drawing method is introduced first, and then the prototype of the bookmark of the cardboard is drawn on the white cardboard with a pencil (because there is no white cardboard here).

2, because the pencil is easy to erase, so use a pen or watercolor pen to color the cardboard bookmark and then use an eraser to erase the pencil scratches. There is no demonstration here because it is a simple explanation.

3. Cut the cardboard bookmark with a paper cutter or scissors. Basically completed, (what I am doing here is a prototype, and the specific creativity depends on myself)

4. The following is the renderings.