Sweet little collars can be added to anything. DIY: Buy a white mens shirt from a thrift shop (look for one with a small narrow collar) and cut off the collar - making sure to keep the small top button so you can secure it around you neck. Wear it with practically anything - dresses, sweaters, tshirts, like these gorgeous Carven models. Best added to a body con outfit for that prim/sexy juxtaposition.
Images: Ruby and Bijou