Seat Socket plugs?

[mdunn]

Curious as to whether anyone makes plugs that go in empty seat sockets not being used.
I have three sockets not being used in my 17.5 Smoker Craft and I see the floatation foam in the bottom that gets wet of course.

I can make something but time is money.
Thanks!

 

[smokeonthewater]

http://www.widgetco.com/rubber-stoppers

 

[mdunn]

Thanks
Was thinking something like that could work.