Prada's Spring/Summer 2011 see these wondeful scroll like arms don theses sun glasses. Old fashioned fun fair art work jump to mind. They go wonderful well with the very colourful womenswear collection Prada created, stripes and bananas a go, go.
Dior had some equally stylish sun glasses if not a bit more of a prudish look, very seceratial. Lovely colours and elongated frames, remind me of the 1950's.
Miu Miu Autumn 2011 has created a series of oversized glasses to protect your eyes from the low sun shine . The over sized thick frames in tortise shell, silver glitter and many a more colour ways add a sense of old fashioned Hollywood glamour.