In a blatant attempt at extra credit points, I have a second entry!
video in motion:
https://wingsnthings.tripod.com/pictures/catsmore.htm
Mt. Catsmore
The mechanism that rotates the heads and sets the tails swinging:
Designed in Tinkercad, 3d printed, and joined with jump rings and head pins.
I’m getting the hang of moving toys! Thanks so much for the inspiration!
Next project; figure out how to make and upload video.
More pix at Mt. Catsmore