For years, I have kept one of those simple pop up air fresheners in the head, to diminish the odor and make it more pleasant. Having been aboard a small marina worth of other boats, I can say for certain that this is a ubiquitous problem.
So my new happy solution? You may have noticed, gentlemen, recently, that all our public urinals now use these little textured plastic looking things that you pee onto. I was noticing that now all these public urinals have a more pleasant, albeit chemical, smell. Because my brain is old and filled with cobwebs, I didn't immediately see the application to Aeolus. But then I did.
I got online and found just what I was looking for.
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Now you may think I'm crazy, but I attached a bit of electrical cable to one of these and placed into the bowl of my head. My wife was dubious. I said, "Give it a chance honey". Well it has been a good six months now, and I'll be damned if our head doesn't ALWAYS smell just dandy! Even when I am doing my business, it smells fine, and the lack of air circulation in the head doesn't make it smell gross. If you need to do something that is incompatible with having this thing in your bowl, it is easy to remove and place in the sink. It will have been washed over by saltwater after the prior use, so it is clean of urine.
You are either thinking I am crazy, and a fool, or wondering why you hadn't already thought of this. I'll take a 100:1 ratio of these reader reactions and still be happy I wrote about it.