Somehow, at the exact same time that I was doing my annual rewatch of Harry Potter, I came across this Reddit thread about fictional gadgets that should exist in real life. Here are some of the coolest responses (I promise that not all of these exist only in the HPCU):
1.The Time-Turner from Harry Potter and Prisoner of Azkaban:
2.The TARDIS from Doctor Who:
3.The notebook from Scribblenauts:
4.Tony Stark's nanotech armor from Iron Man and The Avengers: