Toni- We draw our own figures for the timeline. In MOH, she gives a very basic template for the shape of a person, but for the most part, my children just drew their own. It's almost like a "drawn" narration, as they can draw something that they learned to represent the person. If your children don't like to draw, you could even find clip art from the internet. I've also let them cut up old Abeka history books that I found at Goodwill, so we have some "real" historical pictures on our timeline too.
We have used one timeline (one side of the pattern cutting board) for each MOH book, so one per year. The divisions we used (according to following MOH) are: Creation to Christ (year 1), The Middle Ages (vol 2), The Renaissance & Reformation (vol 3). The author does not have the next volume finished yet, so we will be doing American History this year. We'll use another side of the board for this timeline.
I know I should probably be doing a book of centuries, but we haven't. This works best for our family and it's been a great way for the children to work together. I'm always amazed at how much they've retained just from doing the timeline!
Nanci