Hello Shane,
What I had in mind when I started this thread was mainly the many trillions of different fixed trees you can make in 2D (but with branches spun in space randomly, as shown in the two trees above in the next image):
Also I had thought about the fixed 3D trees shown in the two trees below. Or, by the way, in other figures on the page.
What I hadn't thought about however, is in the 2D moving tree with somewhat stiff hinges (similar to those of a laptop screen). Thanks. But they seem to be a lovely variation of the fixed trees if they could be built. One could make infinite trees with it, even coloring it white on one side and black on the other. It could become a puzzle : - )
Of course the swivel joints would be great, but at the moment I don't have idea about how to make them.
Perhaps they would be tougher if made of metal.
petoro