It's the perfect product for parents who want some piece of mind after the Connecticut school shooting: the bullet-proof backpack.

The head of a Utah-based company that sells the backpack said, "It's an awful thing—you would never imagine your child with this kind of stuff—but since the Newtown tragedy, our sales are more than 10 times better." That company will sell you an Avengers- or Little Mermaid-themed armored backpack for $300.

Several other companies are seeing the same thing.

If you don't want to buy the backpack, some companies just sell a book-size bulletproof insert that will slide into most backpacks.

Keep in mind, these products are only designed to protect against handguns.

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