Experimented with Lightwave3D's IK Boost and what better place to start experimenting than with a tentacle. I created a simple sub-patched tube, shaped like a tentacle, brought it over to Layout, textured a bit and set up a simple animation. The first results were fun, but I quickly realized I needed to animate the camera as well. Once the camera movement was thrown in, it was starting to look like something. I used Image Based Lighting. The Light Probe used is from Bob Groothuis's collection. Imported into Lightwave3D with the sIBL plug-in.