BP to make a basic floating object wobble. Comes from https://www.broad-strokes.com/2016-05/floating-rocks-the-power-of-math-part-1/ https://www.broad-strokes.com/2016-05/make-floating-rocks-with-the-power-of-math-part-2/ Well worth the read.
https://blueprintue.com/blueprint/kzv6p-51/
Don't forget the construction script.