Siz3 7.5 shoe for reference. Firm and floppy. Has a thick area that is the belly?Maybe a grown up of this: https://en.m.wikipedia.org/wiki/Ascidiella_aspersa
I couldn't get a great image of this. It was floating on the surface so I grabbed my shovel to keep it contained. It was not living at this time. I was hoping the black shovel would aid in contrast to the animal. Any help in ID'ing is appreciated.