What is Harry Potter: Marauders Map Cold Change Glass?
If you’re out to cause mischief then a magic map of the building with the live location of everyone inside will come in handy! This is exactly how the Marauder’s Map provided Harry Potter with all of the information he needed to sneak around Hogwarts.
Pour a cold drink into this fantastic glass and the map will magically appear, displaying its secrets around the outside as you sip from it. It’s a neat little piece of Harry Potter merchandise that any fan of the books or films will love!
Harry Potter glass that changes with the temperature
Official Harry Potter merchandise
Add cold liquid and the Marauders Map will appear