As the iconic Japanese character Hello Kitty celebrates its 50th anniversary, one superfan in California has amassed so much merchandise that her husband built her a pink "she-shed" to keep it all in. Helen, who drives a Hello Kitty-decorated SUV and runs the local fan club "Hello Kitty SoCal Babes", has been "obsessed" with the character since its 1970s US debut. IMAGES AND SOUNDBITES