Harry Potter celebration ideas from Davis & Scout. We’ve planned out some adorable party supplies to make a diy magical celebration that easy and affordable. Bring your guests to Hogwarts, have them step onto the 9 3/4 platform, cast spells, and jump into the adventures of the series. This set up includes the sorting hat, Hedwig, a mandrake, Doby with potions to create, treats to enjoy and so much fun to be had!