Everyone's favorite boy wizard notwithstanding, parties that include magical, fantastical and supernatural themes can be great fun. Think of them as Halloween without the pumpkins. Because Harry Potter and friends are so popular, you'll be able to find lots of merchandise to support a Harry Potter-themed party. Why not designate rooms in your home as the four Hogwarts houses: Gryffindor, Ravenclaw, Hufflepuff and Slytherin? For something more generic, employ elements like caldrons (complete with dry ice to approximate steam), witches, capes, moons, stars, broomsticks and magic wands. Dragon cutouts and folks in costume will add to the fun, too. If you have enough energy leftover for a little creative baking, try our Dream Castle Cake. It'll serve a crowd.