Hmm... I would say a hanger bent to keep the shape up... But I don't think that's such a good idea since it'll be on your head and all...
OR! Maybe you use the hanger method, but the hood is stuffed to give it form and the hanger will keep it up and kind of attach that to the top of the hood...
I'm not good at explaining things... Sorry. T-T
Tulio, The Road to El Dorado - 100%
Brick, Powerpuff Girls - 100%
Mituna Captor - 100%
Anime Expo line up alright!