Triploid, Humpy & Seaplane Hater....Know Grizzler
Give it a go and post up what you come up with.
Are those tentacles pretty pliable and where did you get them from?
Have you tried putting a ball of dubbing behind those tentacles then tying them so they lay back like palmered hackle would (think soft hackle)?
You could also wrap chenille or dubbing over the front to get them to lay back.