We just love covering absurd trends in extreme luxury. While the Louie birthday cake trunk is not as extreme as the 22 Karat iPhone we reported on recently, it is still pretty deluxe - luxe. The made-to-order bundt box was created to mark Selfridges 100th birthday. Selfridges will be auctioning off the carb carrier for charity. For more details go to: www.clicsargent.org.uk. Auction ends Friday, May 15th.