G – If you ever saw star trek, then you probably know who Spock is. Yes he is the dude with Vulcan ears. Now you can also get these Vulcan ears, not just for cool looks but according to some research these ears show some questionable enhancement to music listening experience. This is done by a plastic surgeon with local anaesthesia and uses the existing cartilage. Now sure if this is reversible or your kids might end up with Vulcan ears 

Good Luck