Oh man, I can't believe it, the first time I see this thread would be you annoucing that you're not taking any more projects :-(
I was wondering about a small AAA-to AA adapter just the other day.
Just in case you change your mind, and/or if you get open time again, I'll send PM with a quick drawing and of course materials etc. if/when time comes.
In any event, it is very generous of you to do this for the community! An inspiration.