玩具 + 娃娃 / Modifier + 娃娃
娃娃 (wáwa) means "doll" or "baby" and is a noun commonly used to refer to toy dolls or, informally, to small children. The character reduplication gives it a cute, colloquial feel. It often appears with 玩具 (toy) as in 玩具娃娃 (toy doll).
小女孩抱着一个娃娃睡觉。
Xiǎo nǚhái bào zhe yīgè wáwa shuìjiào.
The little girl fell asleep holding a doll.
这个娃娃是妈妈送给我的礼物。
Zhège wáwa shì māma sòng gěi wǒ de lǐwù.
This doll is a gift my mom gave me.
她的房间里有好多玩具娃娃。
Tā de fángjiān lǐ yǒu hǎo duō wánjù wáwa.
There are a lot of toy dolls in her room.