This isn't a final product, just a piece of the puzzle.

I wanted to get a noose to drop down from a ceiling, where it had been concealed. And to enter a scene without the camera view changing to point at the ceiling or any imaginary mechanism in the ceiling.

No matter how I tried to prompt this, I get anything but what I want when trying to add this idea to a real scene. I'd get a noose slowly lowering into the scene at best, wrong place, wrong scale, always with the camera view tilting up to the ceiling, etc.

So I decide to see if, in isolation, I could at least get the physics to work. And that, I can say, works great.

I simple used the first frame of the attached video, created as a still image, and this prompt with MMH3:

Noose drops under the influence of gravity, swinging from black pivot point. Rope straightens out under influence of gravity. Maintain solid green background throughout clip.