You know, there are some things in life you never expect to do twice: get divorced, fall into the same puddle, write a post about scalp massagers. But here we are, looking at the OSIM uCrown 2 -- an AA battery-powered "soothing head massager" that will jingle your worries away while using "patented air pressure technology, vibration, magnetic therapy" and heat to make your cranium a warm and cozy place to be. We give it credit for looking less like it came from the set of