Step 2:

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Materials and Tools. 1 sheet of drawing paper (size A0), a window shade (as reflective material), 1 glass jar with a metallic screw-on lid (0,5L), 1 aluminum beer can (0,33L), 1 water dispenser bottle(5L) cap, 2 lengths of ribbon, adhesive tape, black paint (preferably flat)
You need few tools: a scissors, a cutter (for metal work), a paint brush (if you don’t use a spray).