Alternative washboards

[Deepsouth42]

Hi
In addition to having a ('b' list)proper frame to store my (existing MK1) washboards in a cockpit locker I'd like to make something a little family friendly that will keep the weather out, keep children in, and allow some communication between those in the cockpit and those below decks.
No doubt I am not the only seafarer who needs to wrangle kids and partners in blustery conditions...
'b' list=those jobs that are nice to have done but are not an actual barrier to going sailing.

[Rod]

In the top washboard of "Sea Monkey" I have a screw in 6 inch round plastic hatch. Ideal size to be able to still talk and pass small things through, cheap to purchase, and easy to install yourself.

[storm petrel]

Does this also allow you to reach the outside latch to stop cheeky buggers locking you in?

Cheers,
Mark