Pillow

Pillow - Block of timber mounted on the deck just inside the bow on which the inner end of the bowsprit was supported.

After it's done, then you can evaluate the boat's damage: Is there a gash in your hull? If so, is there water coming in the boat? If there is, stuff things in the opening, like a big beach towel, pillows, bed sheets etc.

A decorative cover made to simulate an article of household linen and used over or in place of it: a pillow sham. verb, intransitive To assume a false appearance or character; dissemble. [Perhaps dialectal variant of SHAME.] . sham¹mer noun ...

A plate for support like a pillow or cushion. A piece of timber used as a support. A temporary foundation. BOLT A metal rod used as a fastening.

I trust that these little bags will form part of the outfit of all going on long cruises. They may serve as pillows or may be made in the shape of cushions, so long as the above general idea is followed.