I.  Material

Ingredient: waste card paper and water.

---

Tools: blender, bowl, gauze, and mold.

II. PROCEDURE

1. Tear the waste card paper into moderate sizes of pieces.

---

2. Pour the pieces into a blender to crush.

---

3. Pour the crushed pieces into a bowl and pour water enough to cover.

---

4. Let the paper soak in water for one day.

---

5. Squeeze water out by using gauze.

---

6. Pour the paper starch onto the mold evenly and dry in an oven at 30°C for a week.

---

III. RESULTS

Thickness: 6mm

---

Toughness: fragile

---

Notes:

---

The upward side turns to be too rough compared with the side beneath, which could be improved by using a paper suppressor.