I'm afraid the old There's Nothing New Under The Sun is true in this case.
I just sort of stumbled onto this Movement Thing, though I have chosen to pursue it a bit more than a saner person might. But several other turners I've become aware of have been incorporating actual movement in some of their turned pieces long before I got onto it - Peter Rand for example, and there's a guy names Robert Whitworth here in the SF Bay Area who developed special tension adjustable ball and socket joints for his poseable "creature" - and even used little needle bearings to allow the head of one to spin - for a LONG time.
I'm just one of a long line of turners, sane or otherwise, who found ways to add actual movement to pieces - and did. I'll take credit for being perhaps a bit more tenacious in pursuing a Wild Hare Idea than others might - tenacious being only a hair's breadth from Bull Headed. And being a Taurus (no, not the Ford product - the astrological sign), I take Bull Headed as a compliment, intended or not.
I like poking into obscure corners and playing with turnings. If I find something others may also find interesting and I can provide some ways for them to try something different, or show that some things that appear difficult or tricky - aren't - and why - that's a bonus.