I found this:
http://answers.yahoo.com/question/index?qid=20071012195544AA033O6

Searching for this:
http://www.google.com/search?hl=en&q=halloween+costume+blow+up+head+thing

I shouldn't be, but I am amazed that the search terms worked and that I'm not the only adult that wants to track down and wear a Kooky Spook for Halloween.