Unstacking cardboard boxes (Victor Raldugin, George Savka)
Most glues used in production of modern cardboard boxes are either not water-resistant or not heat-resistant (or both).
That gives a convenient way of making skillets from boxes. Put the glued side of the box in very hot water (80-90° C) for 1-2 minutes and the glued parts will unstuck.
You can also use an old kettle with a small pipe put on the nose to deliver the vapor to the inside flap. Unfold the box and give it 10-15 minutes to dry up. Then put it for the night into a "drying press" - a small pile of old newspapers with a couple of thick books over them (use a couple of clean newspaper-quality sheets of paper over and under the skillets). In the morning you will have "ironed" skillet ready for collection. Some glues dissolve in the water completely, some will boil up and their remnants are easily removed with the pincers.
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