Chalk this one up to bizarre products out there: fake mold designed to protect your child from school lunch theives. According to Wired:
Here's a way to protect your kids from the school bully: Anti-theft lunch bags, adorned with artificial green splotches to make food look moldy. Just tell your kids not to eat lunch around their teacher, or you might be getting a visit from Child Protective Services.
Of course, there is an easy solution to the bully lunch problem...tofu! Bullies don't usually go for the tofu salad sandwich, but of course, you can always give it that little extra protection with some fake rancid mold. Then again, your child might get picked on for their vegetarian meal, but fortunately at my daughter's school, almost half the population eat meat free.