Randomize shape.rotation for a particle emitter shape, sub emitter instance

Hi All,
I’m making a firework that has a ring-like burst effect that goes off on death of the emitting particle.

The problem is, the sub emitter shape is in the same orientation every time. There are multiple of these ring-like bursts happening at the same time.

Is there any way to randomize the shape.rotation of the ring emitter shape for each instance of the ring-like sub emitter?

Thanks!

If there isn’t a solution maybe it would be doable for unity developers to add “random between two constants” as an option for the rotation here?

194700-shape-module.png