<---Did a quick search for mollusks of the Oregon Coast and got a hit on the second link. I then did an image search and sure enough...it's called a gooseneck barnacle. They spend their life attached to rocks and tend to live in clusters together with mussels.
Ah, so I was completely off! :P Thanks for finding out, Michelle. I was getting very curious as to what he was last night. And now that I look closer at it there is not really a shell at all.
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