Is it this Robot:
https://www.youtube.com/watch?v=mvVKugnx-z4

That prototype unfortunately never made its way to a project or further than that demo video. The files were created by a sculptor friend, Jason.

Here's a tutorial he wrote up on the process: https://tinycircuits.com/blogs/news/new-machines?_pos=8&_sid=9ba67cf7e&_ss=r

His patreon if you were interested in his other work: https://www.patreon.com/user?u=3278712