These dolls start with plastic bottles Can you believe it? The Billy Elf and Major Soldier: Of the Soda Pop Santa Collection book offers easy step-by-step instructions to make the two adorable dolls in felt. Plenty of pictures illustrations and diagrams are included in this book. Billy Elf and Major Soldier are hard bodied dolls that can be made in a matter of days. The two are fabulous projects for the family. The age recommendation is for preteens and older. Make Major Soldier and Billy Elf to go along with the other Soda Pop Santa Collection Santa, Santa's Sled, Reindeer, and Mrs. Claus.