I just googled Japenese Craft Books and found this fantastic site based in Scotland.
It's called Kitty Craft and it sells all sorts of fabrics by the 1/4 yard, though you can buy more un-cut.
They also sell accessories like this flower shaped Yoyo template.
There is also a Pattern Room with loads of patterns and you can also sign up to receive points when you shop and an e-newsletter iwth patterns for projects. Check it out!