Refresh your old chest with contact plastic! METHOD: Measure the length of the chest and divide the measurement by the number of triangles you want. We made four on each drawer. Cut up squares with your measurement x the height of the chest. Measure the middle of the contact plastic, where the tip of the triangle will be, and then cut from the tip to the two corners. Stick the triangles to the chest, smoothing out any air bubbles as you go.