The strangest things get washed up on the beach, or perhaps washed down?  This was sitting there, just like this.  From a distance I thought it was an unfamiliar kind of kelp — hah!  Further down the beach there was a smaller piece, all entangled with real kelp.  But the shape of this one was too irresistible. [I had to type that last word three times, getting its syllables and -ible right!  It’s fun to make editorial comments late at night…]