An 11-year-old Nashville student has invented a simple device that could save lives.

After learning approximately 38 children die each year from being left in hot cars, young Andrew Pelham felt compelled to do something. He entered The Rubber Band Contest for Young Inventors, which is held each year in Akron, Ohio. (The city is also known as the rubber capital of the United States.)

There is only one rule for contestants – they must use rubber bands in their invention. With that in mind, Andrew created the E-Z Baby Saver and won second place, taking home US$500.

Andrew thought his amazing invention might be a cheap way to help parents remember when they have a child in the back seat. The E-Z Baby Saver is a simple device made of duct tape and rubber bands. The device renders parents unable to walk away from the car when a child is still inside. It is a strap that stretches from the back seat to the front and attaches to the driver's side door.

Andrew used his prize money to buy a laptop and create his website.