A neighbor was giving away some pieces of furniture, and gave us a small table. I cleaned out a neglected corner of the laundry room, and made a quiet little place to sit and work on something. There were also two small shelves that were claimed by family members.
A child was working on making a face shield for sledding, and decided to use the side of a 2-liter bottle. Since it was curved, the child decided to iron it under a piece of kitchen parchment paper.. Turns out that what this plastic does when heated is to immediately shrink and make large, smooth blisters. But this worked out in the child's favor, because three of the blisters were placed just right for the eyes and nose of a pair of goggles. Child went on to build a full face mask off of that.
Later on I did my own experiment with another cut-up 2-liter bottle. What came out was a smoothly pebbled (with bumps up to about 2 inches across) otherwise flat surface that is about five inches by seven. It looks very nice, but it would take a lot of bottles to cover a surface of any size.
I also did an experiment into making flatbread. Cooking it on the griddle and in the oven had very similar results, except that the griddle was better for browning it.