Check out this Armpit Fan sold over at Thanko which is a Japanese company. A fan for your armpit is manufactured by a Japanese company? This is shocking to no one. Had it come from anywhere else, now that would be a surprise. The Armpit Fan clips on to your shirt sleeves and sends cool air into your pits. Well, I think we can all agree that this is completely is ridiculous and yet, we want one very badly. Why? I can’t explain it! Desire works in such mysterious ways.