Clothes Hanger Like A Balloon

[atalanta]

I don't know what these things are called, but I used to be able to buy a blow-up hanger, in the shape of ( roughly ) a person's shoulders and neck, so I could hang precious woollies/cashmeres on them to dry and not go out of shape. What are they called, and where can I buy them ?

[Robinia]

Some here...
http://www.johnlewis.com/wenko-inflatable-hangers-set-of-2/p701162

[Mojo-Jo-Jo]

http://www.caraselledirect.com/_/2_white_pvc_inflatable_coat_hangers_with_rotating_hook.1640-1