There isn't any actual evidence that the Ninjato, a Katana like sword used by Ninja's actually exists.
But how could I talk about weapons and not mention Ninja's?
And no joke, everything I looked up about this word came up as "Due to lack of proof that it exists . . . " on and on and on, I really don't have much info to give you on it.
Maybe that is because the Ninja's are so stealthy and sneaky, they keep the information hidden.
But now you can wonder. *Smiles*
*Disclaimer: I have done extensive research on each of these weapons. I am aware that there are many different versions of each of these weapons. I am not trying to spread false information. If you know and can prove any information wrong, please let me know and I will fix my errors. I have at least three references for all research on the weapons I will discuss through the challenge.