I like tentacles. They're dextrous, they have suckers and they move in the most deliciously creepy way. I also have a long-running interest in something called 'procedural generation': using software and mathematics together to produce visuals. I recently built some procedurally-generated tentacles as a sort of visual experiment.
Tell me, O Octopus, I begs,
Is those things arms, or is they legs?
I marvel at thee, Octopus
If I were thou, I'd call me Us.
- Ogden Nash
I wrote a separate technical article talking about how these things work. The less invested reader can just gawp at the results, creepy as they are: