There is one in West Chester on route 3. I think it is Butterflies and _____ (buttons?) Google it! Super cute store with huge selction. Really nice owner. I just consigned a bunch of items there last week.
one fish two fish
Kid to Kid in Drexel Hill (on City Line) is fantastic.
Avoid the one on Haverford in Narberth, and "Love Bugs" on Lancaster in Ardmore -- they are insanely over-priced, and disorganized.