How to apply 2 gameobjects together one with a rotation and the other without?

Hello,

To explain the question more to an example i have 2 gameobjects, one is a plane and the other is a circle. I have attached a rigidbody to the circle so it can roll down a slope. Now on the plane, i have an image saying for example purpose "Hello" but i do not want this to roll. I want to be able to have the plane remain locked on a rotation value but still be able to move with the circle.

I am thinking of trying this by attaching a rigid body to both objects and making them a prefab. On the plane rigid body i would lock all rotation values. If this does not work however, any thoughts on how to approach this?

Thank you Matthew Dennis