I'm pretty sure I've seen one, I think they do exist.
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Here is one. They used curved blades and the square pegs are positioned differently from a regular blade.
Jimmy sez you can use needle nose pliers on a regular blade to break off the corners of the square and can use it that way.
I have not tried it yet, though!
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Wade & Butcher you say! If they make a 24/8 version I'm all over it. Sign me up.
I'm posting this quick reply.
Cheetah
Hart, you have mail. :)
Hehehe, just formatting the pics for a post now :)