Banging around the Intartubz this morning, and Google has my number because an advert for this little gem popped up:
That, Gentle Readers, is a fillet blade designed to be mounted on the reciprocating saw in your shop.
Two things immediately crossed my mind:
1) Having broken down a deer by the side of the road with some friends (Hi, Kelly!) and a sawzall -- why didn't I come up with this genius idea?
2) Southern boys were involved.
Now I have to find a cheap battery-powered sawzall before the big catfish start running.