Wear your house colors with a little more panache than the usual stripes.
Industrious Gryffindor girls magically weave their own accessories. Can we get that spell over here? I could use a new headband!
Available at: Summergirlsbowtique http://www.etsy.com/listing/61047246/harry-potter-gryffindor-headband ($6)
Edible star glitter! I will always be blown away by the variety of food decorations that look inedible but are in fact safe! Also, the little fondant mug on top of this cupcake is filled with butterbeer so you get a little sip before you eat the creamy goodness below. Genius.