Natural Wave keeps things hot

Radiators sure come in handy during winter as you don’t have to freeze your butt off even when you’ve escaped the biting cold outside. The Natural Wave ceramic plate helps harness the heat generated by an old school radiator by turning into a heated plate that keeps your drinks and snacks warm without the need for additional power such as energy-consuming microwaves or ovens. Designed by Byung-seok You, has any other company already manufactured something like this?