Double Ninja Swords

Ninjas don't actually need a weapon to assassinate their enemies. The ninja himself is a perfect lethal weapon, able to neutralize any threat in an instant. Buuuut... Sometimes it's nice to have weapons when you want to relax and not completely blow a non-ninja's mind at how easily you destroy them. Most of these weapons, only a ninja is skilled enough to use them. There's a reason ninja stars are called ninja stars (they're used by ninjas. That's the reason).

So you, Mr. Ninja, might not think you need these ninja swords. Double ninja swords. You're right. You don't. You could take out anyone with barely a whisper, because that's what ninjas do. But you should still have these swords on you, because if you ever need them, they'll be ready, as swift and deadly as you are. Besides, you never know when you might be up against another ninja! You'll want every advantage possible.