We watched the "Before the Old Testament" video available from the LDS Media Library, then used the material from the manual to review. They were very interested in how different people imagined that Heaven looked.
The children drew names of people they knew and people in the scriptures from a bag. They put them on the board next to the picture of the person they had chosen to follow in the War in Heaven. There are lots of pictures of Jesus Christ, but I had to make my own representation of Satan. . .
The children drew pictures to represent different ways that they could follow Jesus Christ, and then they had a little free art time at the end.