Rhetorical Question Mark
I was thinking about how the written word sometimes doesn’t quite convey the manner of speaking intended by the writer. Consider this sentence:
That “a bit ‘O home” may sound to the ears of those on the review board as somewhat uneducated hadn’t occurred to me but, what the heck, what’s done is done.
Of course the whole of the English Language is a hot mess ( [dialogue], [wiki] ); but as I see it what the heck is a sort of rhetorical question. Would a special mark help the reader? Probably not, but it was fun to design one anyway:

Introducing: The Rhetorical Question Mark
With my new invention (©2009 Mike Figueroa) you can craft sentences with rhetorical questions all you like, pretty neat huh 
All this silly/serious talk reminds me of Victor Borge, awesome as he is:
Tags: diacritic marks, hypothetical question, language, question mark, special character, syntax, type design, Victor Borge, video
August 19th, 2009 at 2:52 pm
The implied ? mark is a strange deal when reading rather than speaking since the speaker can downplay the need for an answer to a non-question. I think the new design should be implemented to eliminate the confusion!