Today, I was actually thinking about how I am going to teach financial planning to my kid (who is barely 6 months old!!!) later. Came across quite a number of sites suitable for this quest.

Let's look at http://www.mysavingsquest.com/.

This site provides a game (you need flash for this game) that allows the child to choose a job and make expenses accordingly.

Beginning with choosing a character from 6 available ones, you can also customise the colour of skin, hair, eyes and shirt by selecting the colour of your choice.
 
A choice of 4 jobs : Copy Editor, Accountant, Detective & Archaelogist. Each paying $2000 a month. So, what's the difference you ask? The task or exercise in this game differs by the job chosen.

A duration of 6 months is given for you to save for a goal that you have specified. Each goal would be of different value so that you know how to budget your savings.

A brief introduction is also given about taxes and retirement planning.

After each task is completed successfully, the salary is banked in and you get to pay of your expenses.

I personally find this game quite interesting especially to kids from 8-12 years. Try it and give me a feedback on it..