I love, love, love the Villlage St. Paul, which is a great place to know about if you are in Paris for the weekend, as it is one of the few areas open on a Sunday. Sandwiched between the rue St Antoine and the Seine in the 4th, The Village consists of several little courtyards which are all interlinked and filled with little shops. Most of them are antique dealers, but you can also find Niou there, a lovely little toy shop.
It is the best place for me to go if I am looking for a present and want to find something unique and fun.
The other day I was having a browse around the shop and I was listening to the owner show a friend of his the new stock he had received. He was excited like a kid to have all these great new things in his shop. For me that was the best advertisement for Niou; it is the kind of place in which you feel that the shopkeeper has hand-picked every single item and loves what he does.