A Pendulum Wave. Beautiful to watch. See it in action in the attached video.
It comes with three sets of Pendula and a pusher which slots into the base.
To assemble put an end cap onto the post and then all the pendula with spacers in-between. Add the second end cap and slot the post into the stand.
Make the pendula swing using the pusher or by simply sliding the stand forward and back.
I have also included a set of four files for the sun swirl pendula for printing on a small bed printer.
The author marked this model as their own original creation.