Unless they have stopped making them in the last few years, X-acto offers hacksaw type blades which should fit your generic handle just fine.  For those without a grinder...<br><br>And I love your idea.  I don't have a lathe or drill press (yet), but I am pretty good with hacksaw, file, and dremel, so I will be making one.  You are a very inventive guy...
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OBG