Kelp Animation using Bone Tool

Today in class we were introduced to the Bone Tool for use in animation.  Our in class demo had us animating legs - bones with few joints.  I wondered if the bone tool could be used to animate something that moved more like a vertibre (backbone) with several small bones, and many joints.

I applied this thought to underwater plants.  Would the bone tool work for something with no bones swaying under the rocking motion of the sea?  I think it worked pretty well!