Thanks so much for your answers. I may be silly, but what is go fish?
I was thinking of doing flash cards with her and also songs like "heads, shoulders knees and toes" etc. The Barbie idea is ace. Anything I buy for these classes will be just for these classes (I only teach kids at other language schools, I have no stuff of my own) so I want to keep the cost to a minimum as Japanese women have a habit of pulling out of lessons at the last minute.
Thanks, people!