When my eldest was much younger (10-ish, maybe?) he ran across the concept of tensegrity structures somewhere, and after a few small-scale trials with chopstick

When my eldest was much younger (10-ish, maybe?) he ran across the concept of tensegrity structures somewhere, and after a few small-scale trials with chopsticks, we ended up building a tensegrity tower out of garden canes and twine. For being quite rough-and-ready, it seemed surprisingly stable. Fun times!