I was inspired by a video I saw online, so I designed this in my own way.

For the assembly:

1. First, you need a glass marble of your choice (16 or 15 mm diameter).
2. To connect the two printed parts together, you can use either one Phillips thread-forming screw (M3x10) or a Super Glue.
3. At the back, there are two hidden mounting holes for screws to attach the hanger to the wall. Alternatively, you can use double-sided tape instead of screws.