天球星座灯（constellation light ball）

A celestial light ball that can project stars onto the wall.
As a child, I loved watching the stars, learning about constellations, and living in a village with a clear summer night sky full of stars. Nowadays, light pollution is severe, and it is difficult to see the starry sky of my childhood anymore.
Appendix: The materials of the celestial light ball. Most of them are replaceable and not mandatory. I made them myself while I had some materials at hand.
Note: Model printing assembly requires adhesive and double-sided adhesive for fixation. Capable experts can modify the card mouth or thread by magic!