"Stratum is a desk mat that gives office workers control over their own temperature by applying heating or cooling directly to the forearms."
"It works on the principle of spatial alliesthesia - the same way you quickly feel more comfortable when you wrap your hands around a hot mug on a chilly day, or run your wrists under cold water when you're too warm. By localising the application of heating and cooling, Stratum can keep users feeling just right in a wide range of office temperatures, using a fraction of the energy and with no impact on those around them.?"
"Stratum is designed to be unobtrusive and facilitate productivity by minimising interactions with the device. The mat self-regulates to maintain users' desired temperature, and it takes just a matter of seconds to switch between heating, cooling and neutral presets. If the full desk space is needed, Stratum can be simply rolled up and moved aside."
I would be so curious to try this, but alas, it's just a concept.