Even Newt Scamander has trouble keeping track of his niffler sometimes, and Newt’s an expert on magical creatures. After all, he wrote the book. We don’t blame him – nifflers are pretty hard to keep under control, especially when they spot something shiny. Hopefully one doesn’t try and take this mug when you aren’t looking.
Keep an eye on anything you may have that’s shiny with this heat change mug. It may be dark with only the Fantastic Beasts logo when cold, but when you put in a hot beverage you find out there was a niffler hiding in it all along!