This magic window is a fascinating craft to make when telling this story. At the beginning of the story, the kids see the oil lamps with no flames. At the end of the story, when they slide the paper, the kids get excited when they see 5 flames burning on five lamps and no flames on the other oil lamps.
There is a video on how to make magic windows on my blog. Click on "Aaron's Rod that Buds" and scroll down the video under "Aaron's Rod that Buds Magic Window".
Patterns for this magic window can be found here: