Move over Santa, Lady Gaga has taken over the entire 5th floor of Barneys New York.  'Gaga's Workshop' features all the stocking-stuffers a Gaga fan could dream up.  Lady Gaga's beloved 'Little Monsters' can purchase candy, toys, books, even clothing, all designed by the star who recently collaborated with the department store especially to design her first-ever a line of holiday trinkets.  But be prepared.  The prices are steep.  I've got my eye on an $85 box of cookies formed in the shape of some of Gaga's most famous stage costumes.  Worth it for my BFF.  And I'll feel great knowing 25% of all proceeds from the workshop's sales will go to the newly-formed 'Born This Way Foundation' centered on empowering the youth of today.