Wanted to make Bob the Skull (From The Dresden Files Book Series) and I thought this base skull model would be perfect. Used Fusion 360 and Meshmixer to hollow it out for electronics, LEDs and batteries and made a mount/cover. Also made a base for it to sit on and be powered/controlled from when not in it's mobile form (files not included since it's such a custom thing, but if there's interest I could definitely share) to house additional electronics, mic, speaker, etc. so that I can also use it as a Voice Assistant with my Home Assistant instance. He responds to 'Hey Bob' and talks in a British accent; makes me smile every time I ask him to turn on the lights in my 'lab'. I just use him for basic local control of my office/home, but I can also switch to an LLM if I want to have a 'conversation' with him.

I've included the final modified Skull STL, the Cover/Mount STL and then the Fusion 360 file I created (as well as the STEP of that) for my modifications.