Teach your kid the values of going green. Present him the reuseable Lunch Box from a Swiss company Sigg. The company is known for producing quality, non-toxic containers. This time their new product is a cute light lunch box made out of anodized aluminum. And to avoid the soups from spilling,it comes with a snap lock to keep the lid securely in place and a rubber seal to provide a leakproof closure.
You can get it at Amazon for $30 or from eBay for $18.99.