The Puppet Box

In VGUC - has a sticker inside the front 

When Rua begins kindergarten he is very shy, so his teacher introduces him to a kiwi puppet. Kiwis are also shy, she says, and encourages him to play with the puppet. The next day brings a different puppet, the following day another, and each one gives Rua the courage to participate in the other children's activities. Finally, at the end of the week a new girl starts school, and she is very shy. Rua takes her the puppet box.