Create Heated Controllers or Gloves
I'm sick of frozen gamer hands in Winter. It would be nice to experiment with heated controllers, or maybe "gamer gloves" that wouldn't inhibit hand motion or tactile quality too much.
I like the idea of a heated controller. It would probably have to be a wired version, but I'm okay with that. And by wired I mean wireless with the ability to provide power through USB cable from an alternate source. For example I frequently run my controller wirelessly with it plugged into a USB power brick that's plugged into the wall. Something like that would work well.