Unless they have changed since we last cruised, it is more of a half-bandana, triangular rather than square.
We did on that same EBPC sailing (which actually departed 10/27/2017). They were left by our stateroom host on the bed as usual. I used the bandana as a pocket square for our Palo dinner.We did not get them on the EBPC 10/26/17 sailing on the Wonder