Origami
This section is in development. In the meantime, here are a couple of talks that I gave in 2021, in the Mathematics and Arts minisymposium at the joint meeting of the German and Austrian Mathematical Society in September, and at the 2022 Gathering for Gardner Celebration of Mind in October. You will find recordings of fascinating talks from both of these events at the links.
And here are some photographs of sheets of paper, folded by me.