The theme is 1960s cocktail dress and i've been told to think mad men (not that i've ever seen it!) Would any of these fit the bill? [[http://www.dorothyperkins.com/webapp/wcs/stores/servlet/ProductDisplay?beginIndex=0&viewAllFlag=&catalogId=33053&storeId=12552&productId=5479559&langId=-1&sort_field=Relevance&categoryId=208782&parent_categoryId=226988&pageSize=200 halter neck]] [[http://www.dorothyperkins.com/webapp/wcs/stores/servlet/ProductDisplay?beginIndex=0&viewAllFlag=&catalogId=33053&storeId=12552&productId=5479207&langId=-1&sort_field=Relevance&categoryId=208782&parent_categoryId=226988&pageSize=200 safer option]] [[http://www.dorothyperkins.com/webapp/wcs/stores/servlet/ProductDisplay?beginIndex=0&viewAllFlag=&catalogId=33053&storeId=12552&productId=5459170&langId=-1&categoryId=&searchTerm=prom&pageSize=200 floral]]