Microfinance Children's Book, please?

I am surprised that despite all of the activity, interest in and publications about microfinance in recent years, there is still nothing that targets young children and teaches them about this.  There is one book -- Rickshaw Girl, which is a delightful read by Mitali Perkins -- but it only mentions microfinance in passing.  The story is about a little girl in Bangladesh and her alpana drawings.  Its intended audience is young readers, so the pages are filled mostly with text... and no colorful photos.I think it's time this changed!

MicrofinanceApril Rinne