German car manufacturer Porsche has created a luxury advent calendar that comes with a range of expensive hidden surprises including a fully customisable Porsche Design kitchen.Porsche has made just five of the extravagant calendar items, or one per continent, which stand six feet high and are made of brushed aluminium steel.With a price tag of 1 million each, the items are also clearly aimed at the super-rich.Behind each Porsche calendar door is a gift. These include some tangible objects like a Porsche Design P6910 Indicator watch as well as concept gifts like a customisable kitchen or yacht.Indeed, news of the kitchen gift prompted various media outlets to proclaim that the advent calendars come with everything including the kitchen sink.The news comes after John Sacca, department supervisor at Home Depot in Vineland, US, recently told theDailyJournal.com that homeowners can often achieve their ideal kitchens without breaking the bank.