look = Matryoshka dolls, Babushka dolls and Russian Nesting dolls Store (not in the US)
A LOT OF dolls)))

and in the US Disney Nesting Dolls - Winnie the Pooh Cunderella Snowwhite Dolls even disney =)

you can use for searching these words: russian dolls, matryoshka, wooden russian toy

UPD = my advice for children: to try this kind of toys = Pecking Chicken Swing Toy Black