Since Wisconsin is so touchy on firearms and self defense, I've often wondered about customizing some garden variety CS axe with a mirror finish edge. Any potential home invader is going to wet himself facing that.
My only concern is the media blitz after the fact. To be sure, any attack is going to result in a major trauma, like the loss of a limb. Around here with this liberal bent, I'm sure I'd be demonized guarding my own home.
"Bipolar Biker Hacks Up Intruder."
Still, some of those CS axes are only thirty bucks on "Special Projects"...