If you want my honest opinion, the bento stuff at Ichibankan is kind of hit or miss. I live near one of the actual stores. If I was going to have to pay international shipping for it, I wouldn't bother.
If you don't mind Sanrio/Hello Kitty stuff, you're better off trying to find a company that would ship that stuff internationally. Sanrio does make character themed Bento boxes that are a better quality.