To begin with, I grabbed some thin composition books available through my supply order.
Next, I downloaded Paige Bessick's Interactive Notebook Letter Sound Practice sheets from TpT. (Here) Update: This was a free resource, but is now listed for $2.00.
I also downloaded the notebook cover which was created by Keri Brown. (Here)
Finally, I created some additional pieces. I created a set of alphabet pictures for under each flap and a handwriting practice portion. (Here)
I am thrilled with the results! Students are doing a terrific job putting the pieces together. This has become one of my favorite activities!
If you noticed from the photos, I have cut out several parts for the children. All they needed to do was glue them on. This has made things go very smoothly.
Keep it interactive. Have students review and discuss previous pages with one another before they add a new part.