My family adores Catan, and it just so happens that there are numerous free files that allow you to create a fully 3D version of its board (this community is a gem, I swear). "Perfect!" I thought.

At first glance, a flyable airplane made of cardboard sounds almost like a joke – the sort of thing that collapses long before it ever leaves the ground. But YouTuber and serial tinkerer Peter Sripol ...