What a marvelous idea, Ada! And I'm happy to help you with the planning. I myself like the Madison Ave. boutique (at 64th St.) better than the one on 57th & Fifth (think it has a warmer/more welcoming ambiance) -- and in keeping with the Parisian mood, perhaps people would enjoy Mon Petit Cafe? it's a little jewel of a bistro quite close by at Lexington & 62nd that isn't outrageously priced.
But if others prefer the 57th Ave. store, that's fine by me. I'm sure it will be fun no matter where!
sounds lovely!