We recently got to review the Sun, Moon, and Stars activity box from Babbabox. In the box, there was a book, a paper mache kit to make a nightlight, sunlight-sensitive paper to make a constellation, and a chart with binoculars to observe the moon's cycle. Here's an image of all that was included in the box from the Babbabox website:
The was a kit to create your own constellation using sunlight sensitive paper and stickers. I found this project just as incredible as Bear did. The stickers go on the light blue paper, which fades in the sun. But then when it's exposed in water, it turns a deep blue as seen below. It was quite amazing to watch it change. The circle on Bear's constellation was made from a soup can that he wanted to add to create a moon in his paper sky.