The intricate mechanism for playful purposes reminds me of Japanese karakuri dolls [1]. Some videos are at [2, 3, 4]. [1] https://en.wikipedia.org/wiki/Karakur

The intricate mechanism for playful purposes reminds me of Japanese karakuri dolls [1]. Some videos are at [2, 3, 4]. [1] https://en.wikipedia.org/wiki/Karakuri_puppet https://en.wikipedia.org/wiki/Karakuri_puppet [2] https://www.youtube.com/watch?v=DgIDStgaybc https://www.youtube.com/watch?v=DgIDStgaybc [3] https://www.youtube.com/watch?v=ZDVB2GLdxzE&t=254s https://www.youtube.com/watch?v=ZDVB2GLdxzE&t=254s [4] https://www.youtube.com/watch?v=Es9KzLwABm0 https://www.youtube.com/watch?v=Es9KzLwABm0