Mine is based on this really old idea I sketched and posted about years ago ( old post here ).
This is where the build is at right now.
How I created it this far will be in future posts. Right now I'm working on the tendril arm branches. Which I'm having fun creating, inspired by the work of Pumpkinrot and the late John Wolfe of Seasons of Shadows.
Nowhere near done yet, I'm only finding time to work on for an hour or so every 3 or 4 days. In the meantime, I'll retro-post the "making of" so far over the next week or so.