Tumblr is a place of unexpected joy and amusement, so it's wholly unsurprising that some serious magical genius would be borne of its pages of insanity. User rasec-wizzlbang suggested a world in which Harry Potter and Willy Wonka coexist - and the latter is absolutely loathed by the Ministry of Magic. If you're a fan of either, you'll be more than capable of suspending your disbelief. And it will be absolutely worth it.
