The Magic Mirror is a wall item that first appeared in the Puzzle Palace. There was a contest in 2009 on The Daily Growl which gave away a Magic Mirror as a prize. It is now sold at Horrods but it only appears in stock twice a day; it is unknown if this is actually true.
Look deep and see if you can unlock its mystical powers.
Moshi Monsters Magazine
Magic mirrors come complete with mystical powers. They only appear twice a day - you'll have to be very lucky to find one!