If you don’t mind looking a little strange, Thanko Japan has a fun little gadget that could help you keep your feet a couple of degrees cooler than your surroundings. It’s a USB-powered clip-on fan that directs air straight onto your feet, dropping their temperature by a reported 3 degrees Celcius. Yes, that does mean that on top of having to attach a strange looking plastic doodad to your shoes, you have to tether them to a USB port. You’ll be the talk of the office, that much is clear, but at least it won’t be because of how smelly your feet are. If you don’t mind the indignity, it’s 3,480 Japanese Yen (US $34) to own.