After my experiments with plaster I turned to paper again. It's my most favourite material after all. I covered old slides with an assortment of scraps of paper and sometimes just stuck a piece on one side. Because in the slums all kinds of materials are being used I used the pieces of paper without putting much thought in colour coordinating.
I drilled holes in the corners and joined the slides with iron and copper wire. Sometimes I made a small embellishment with the wire.