Thelio, you can get them on Amazon, but I found this in the miscellaneous section of a Japanese site that sells swords. It's only 70 cm long, which is why I wanted it. The only other one that length I found on Amazon and it's a really pretty white one. Otherwise they're all way too long for someone like me who is only 5'4".
This is so cool:
It also lets you know when you would not want to be a woman in China!