We have thought about it a bit, as we have a 2016 R31. We may just bend an umbrella stand into our fishing rod holder so that it covers the seat when deployed. We have King Canvas doing an aft enclosure for us but we do want to have the fold out seats usable when there is drizzle.
The problem with the umbrella stand being bent is you have to store the bent pole someplace when not in use and it would not be easy to find a place for it. We have also considered putting a pole holder on the back deck cover for a short umbrella stand, but not sure I want to do that either.
I know there are smarter and more clever people out there, so I am waiting for better ideas to pop up.
Jeff and Ela
Wallowa R31