You can buy a t-shirt that says "looking for Japanese girlfriend" in the below...
http://www.jlist.com/product/SHIRT-GF8
but if you do, you're pretty desperate.
why Japanese? why not Korean, Chinese or French?
Do you want someone to clean your house? make you dinner? so you can brag to your friends you had a one night stand with a "yellow cab".
trying to find a girlfriend based on a stereotype, in this case race, you have to think back and look at yourself... did you live in a hole your entire life?
I'm a Japanese guy and have dated Japanese girls.... and if you looking for a girl based on that stereotype, you probably want to look back at yourself and think what's wrong with me than think what's wrong with everyone else. Maybe you should read a book or something...