This is a $12 ThinkGeek coffee mug with a heart on it that turns red when there's hot liquid inside and black when there's not. No word what color it turns if filled with unicorn tears, but my guess is a rainbow. And speaking of unicorn tears... *stirring cat knuckles, dragon scales and a witch's nip into potion* "GW -- what are you doing?!" *drinking* What the f*** does it look like I'm doing? I'M ABOUT TO FLY.