This started as a test of characters whose limbs come out from inside their body. A poster on Reddit was asking about it and while I knew it was technically possible, I didn't feel right saying so without confirming that it was practical with the method I had in mind.
Visit my website for a more detailed breakdown of the lessons I learned from this.
https://solomonswebsite.com/sleepy-robots-an-adventure-in-armatures
I made a quick animation with this character on YouTube
https://youtu.be/NDX5GUM85Dc