Composition dolls are made from a mixture of materials such as sawdust, glue, and various fillers bonded with an adhesive. They are typically painted and have inset eyes, making them a popular choice for children's toys in the early 1900s. However, over time, the term "composition doll" has come to encompass a wide range of similar dolls made with different materials, such as papier-mâche, celluloid, and bisque. Each type of "composition doll" has its own unique characteristics, and collectors often use different terms, such as "paper doll," "hard plastic doll," or "porcelain doll," to refer to specific types of dolls and their respective materials.