There are many vintage patterns that you can find that use the doll heads and hands. It depends on what size you are using. There were those cute large doll heads that had hair and then there were just the doll face with hands. There was a designer that had a series of crochet booklets in the 80's called "Crocheted Favorites and Originals of Jessie Abularach." She always had some very easy doll patterns.
There were also a series of patterns from Dumplin Designs called Cupcake Corners. They used the doll heads with hair.
One of my favorite patterns that use various faces is called "Dolls to Crochet for Use and Play." If you google any of these titles and then click on shopping, you should find them on the net.