DIY: Tea Stained Hogwarts Letter - printable and tutorial
Easily DIY wands using cooking chop sticks for your favorite little wizard (or, you know, yourself). Some amazing ideas on this post.
Butter beer recipes--EASY & FUN Harry Potter Potions Class Experiments - sounds like the best indoor kids activity ever!
27 Harry Potter DIYs That Are Basically Magic - do different houses' colors for beer pong
The only problem is Harry is not smart enough to figure any of that out. the sass seems about right though
Harry Potter Hogwarts House Banners DIY - Paper Trail Design - Home Decor