The Basswife likes to fish for bass, but does not want to be uncomfortable. This means no bugs and some shade when it is hot. I got her a "buzzoff" hat to deal with the bugs (works great), the shade eluded me;after all, this was the basscanoe; a floating bass fishing machine that is about as far from being a pleasure craft as is humanly possible.
Up until recently, the solution was to take a small umbrella with us and she would pop it up when she felt like it. But... being a guy with power tools, I realized that I could do better than that.
So, I got a beach umbrella that hooks onto a chair and cut a small piece of wood which I attached to a big dowel with a metal joiner plate; one normally used on decks. I beat it with a hammer to make it conform to the curve on the dowel and then screwed it together.
The umbrella clamps right onto the small piece of wood. The dowel goes in the rod holder that is attached to the seat allowing the Basswife to pop open the umbrella at any time. The great thing about this is that she can continue to cast and fish while enjoying the shade.
I was in a bit of a pickle the day I took these pictures because I forgot to bring the Basswife's canoe seat and got the "look". Next time out, I'll take a cable tie and attach the umbrella stand to the metal rim of the seat to give it another point of stability. We found it moved around a bit more than we wanted when it was stuck into the hole as shown.
As for me, I just bake in the back.