Just a thought, how about a reciprocating saw blade?
I use them for work. They have a hole and the bimetal blades are super flexible.
The lennox and bosch blades are excellent and the wood blades are very sharp and last well.
Anyone made a knife usin an old power hacksaw blade? Head of it being done and fancy making a little carving knife. I don't have a grinder, but i've got plenty of files. Would this be a managable project? And could I get away without heat treating it?
Cheers