Organic supports representing tentacles seemed like a no-brainer to me so I came up with the idea of having organic supports grabbing a submarine and pulling it down into the abyss.
I tilted the submarine slightly so it would look like the creature is already in the process of pulling it down into the depths, it's also holding the propeller so the submarine has no chance of escaping it's grasp…
I put together the parts from the original model in Tinkercad and generated the supports seen in the pictures in Prusaslicer 2.6.0-beta2, I included the 3mf file if you wish to have the exact same organic supports but also the stl for just the submarine if you have other plans for it
The author remixed this model.