Multitasking Radiator

In my Brooklyn office (that sounds so official), I sat next to a radiator with a little shelf on top of it. Used to keep my coffee warm in the winter, very convenient. Would you know, someone's come up with a product that does the exact same thing? Yep, you set this ceramic plate on top of the radiator, plop your drink and snacks on it, and, presto, your radiator is a hot plate.

Assuming the heat's on.