8. Brew a cauldron full of cocktails like Hair of the Three-Headed Dog, Wolfsbane Potion and Amortentia.
10. Let loose a flock of balloon owls weighed down by Hogwarts letters.
11. Play a fun game of table Quidditch to really get the party started.
14. And kick them up a notch by stashing them in a printable chocolate frog box.
21. Charm two ingredients into these chocolate witch hats.
24. Decorate a birthday cake to look just like Hagrid's.
The best part? The messier the cake, the more authentic it is.
Check out the tutorial here.