Your kid will be mesmerized by this infant stimulator!
My biggest concern was the weight of this system so I went to ~15g with all the parts!
It requires little glueing in order to connect butterfly hanger. Everything else is glue-free snap/hang.
Very durable, ultra light tons of joy for your little kid!
All parts are layouted for printing.
Stimulator in action: https://youtu.be/Mu4kKmGZ6XU