These are all muggle tested and Harry Potter approved.
This set of Gryffindor house rings that double as an invisibility cloak*.
Which includes Ron's crown, Harry's snitch, and Hermione's red rose.
*Invisibility not guaranteed.
Source: etsy.com
This Hogwarts Express door sticker, so you can quickly access the place muggles can't see.
All aboard!
Source: etsy.com
Don't leave home without this vintage inspired Hogwarts travel card.
Source: theuniblogger
Figure out how to break into Harry and Ron's room with this handy map.
Not that you'd want to, or anything.
Source: hogwarts-castle.deviantart.com
