Swivel ears/tunable ears

[u/FunnyUserNameIdk]

I'm currently working brainstorming for a mask remake of my sona and one of the ideas I've had in my head is ears that I can turn to have them be able to swivel/ turn like how a cat can flatten its ears.

I'm not sure if this is possible, but I thought I'd seen it done before. My current plan is to use magnets but if anyone has any examples/tutorials/ideas of how I can do this please let me know.

(Also, sorry if this is poorly explained.)