The tutorial for making Zero glasses with paper is as follows:

Material preparation: white or light-colored thick cardboard, used to make the main body of the glasses. Thin black or dark cardboard used to make the lenses of eyeglasses. Scotch tape or double-sided tape to secure lenses. Tools such as scissors, pencil, ruler, or card stock.

1. First, you need to draw the main template of the glasses on thick cardboard according to the shape and size of the Zero glasses. In this process, you need to carefully observe the structural characteristics of Siro glasses, such as their curved frames and slender temples. Then, use a pencil to lightly outline the features on the thick cardboard. Be careful to be as accurate as possible to avoid subsequent trouble.

2. Next is the lens part. You need to draw the corresponding template on thin cardboard according to the shape and size of the lenses of the Zero glasses. Again, use a pencil to carefully trace the outline of the lens. This step is to ensure that the shape of the subsequently cut lens matches the template.

3. Use scissors or a cardboard cutter to start cutting the thick cardboard and thin cardboard along the edge of the previously drawn template. This step requires patience and care to ensure that the cut out glasses body and lens shape are exactly the same as the template. At the same time, in order to make the edges smoother, you need to pay attention to keeping the cutting edge of the scissors or cardstock knife sharp.

4. Now, use transparent tape or double-sided tape to stick the thin cardboard lenses to the corresponding positions of the thick cardboard glasses body. First, determine the position of the lenses on the body of the glasses, and then carefully glue them firmly. In order to make the lenses flatter, you can gently place them on the main body of the glasses before pasting them, making sure that they fit completely into the main body of the glasses before pasting them.

5. Some details need to be added to the Zero glasses. For example, use a pencil to outline the lines and decorative patterns of Cerro glasses on the frames and lenses. These details can include elements such as Cerro’s signature patterns, stars, and more. In order to enrich the decoration, you can also use thin cardboard of different colors to cut out other details such as Zero's eye patch, and then paste them on the glasses.

6. The last step is to clean up and complete the production. Use an eraser to erase pencil marks and give your glasses a neater look. Once the cleanup is done, the Cero glasses are done! Remember to handle it with care when wearing it to avoid damaging this carefully crafted pair of Silo glasses.