If you decide to go with the motorized radar/ weather array ...
I have a few of those "vibrating" motors.
They have an elliptical cam on the end of the shafts. That's what makes the phone vibrate/dance. Their easily removable.
I used one to make working windshield wipers on a 1/87 scale locomotive.
They worked great ..... but I'm NEVER doing that again !!!
If you want, I could send some your way.
Cap is right, you will need some resistors to slow them down.