Around this time of year even the most cold-hearted gadget freaks could use a little warming up, but we'd rather freeze than wear a pair of USB Warmer Gloves, and we think you know our position on a Hello Kitty heating pad. There are a variety of heated mice on the market that could provide warmth surreptitiously, but only for one palm at a time.
There may, however, be a solution--in the keys themselves. The appropriately named "Warmkeyboard" claims to have "heating elements" built directly into its keys to "gently radiate heat into your hands," according to I4U News. It would probably be a more office-friendly alternative than the Vulcan 47 Super Arctic Master.