...I have three.
1) One's a traditional-styled katana, something I got for only $100; blade's not too sharp, but you can still give yourself some nasty little knicks if you're not careful, and it'll cut small branches and trees in half. I used it for practice, but the cotton cloth-wrapping around the hilt eventually came undone, and the rest of the hilt wanted to fall apart...had to put black masking tape around it like a busted hockey stick, and tried re-wrapping the cloth around the hilt; it's wrapped, but I couldn't do it like it was originally wrapped. The cotton wrapping chafes my hands, so I make sure to practice with gloves.
Apparently, some swords are produced and marketed as consumer products...with fully, legitimately sharpened blades. There're even famous sword makers (Kit-Rae, Paul Chen, etc.) and manufacturers (United Cutlery) who produce this stuff. That's where these other two come in:
2 & 3) "Samurai 3000" Katana & Ninja Sword: These, I bought as a combo. They're designed to have a sci-fi design; the hilt is detailed and textured equivocally like that of a light saber, and the whole swords, both the blade and hilt, are made of steel, which, for me, is ideal for practice. I still wear gloves, but the hilt doesn't chafe my hands as much as a wooden, cotton-wrapped hilt does. The ninja sword is a bit shorter, lighter, and definitely more ideal for a quicker strike; it's also double-bladed - but I'm guessing those features are standard for a ninja sword.
At one point, I suppose I'll end up picking up fencing, or some form of swordsmanship, formally; so far, though, I've only done basic maneuvers, the likes I've seen in anime, movies, and video-games. I know about 5, maybe 6 different strokes.
I make sure to practice at a private spot, out in the woods, or on the beach, where I won't be disturbing anyone; besides, REAL sword masters have always trained out in the wilderness, right? 
I'll probably end up picking up some higher quality, more artful pieces if I ever get the cash; got my eyes on a few rapiers, and definitely some better katanas.
Jay wrote:No, you really need to be looking at mines, grenades and plenty of firepower.
Yeah, 'cuz those are legal, and plentiful to civilians...you'd probably have to raid an abandoned military stash for those.
Daniel K wrote:Jay wrote:I have to question a sword's usefulness. By the time the living dead get close enough for a sword to make contact, you're far too at risk and one tiny mistake even with just one zombie could cost you your life. If you're dealing with multiple undead (which, let's face it, is highly likely), you don't stand a chance.
No, you really need to be looking at mines, grenades and plenty of firepower.
Yeah. And if you absolutely had to have a melee weapon, a good aluminum bat is much better than a sword when it comes to zombies, I would think.
A bat might require successive hits before they go down; chop 'em in half, though, and I think they'll stop functioning.
Honestly though, I do own these for my own peace of mind, but practicing with them is also good meditation and exercise; I pray that I'll never have to use them in all seriousness, though.