Here are a few of my favorite ideas from the article:
Ages 3 to 7 - Play games sorting, identifying or counting coins. .
Ages 8 to 12 - Consider rewarding your child for good savings habits by supplementing his or her own deposits or investments.
Ages 13 to 17 - Your child can begin making money outside of the home, either after school or in the summer... The emphasis should be on learning about the working world and responsibility, not making thousands of dollars a year in outside income.