I found these SAFES @ Dollar Tree & they came with a pack of bills & coins. Perfect opportunity to let them have some FUN & LEARN about money!
Let your child DECORATE their SAFE & put in their room. Then you can use the money as "allowance" for doing chores & they can put it in their safe when they earn it. Have a reward system where they can use their money to buy something when they have saved up enough!