I love Kyary too, and I am currently making the dress from Tsukema Tsukeru, and I'm making the skirt out of those chip bags in the variety packs by eating all the chips (
yum!) and then blowing the bags up and hot gluing them to a black tutu, its working pretty well right now and I suggest trying that out!
The skirt is rather easy, its making those stupid shoulder parts that's difficult! lol