A good wireless gamepad that can work with xinput as usual. May add seamless integration with the wyze headphones.
BUT, the main thing is that it should come with a camera and a holder for the phone. You put the camera on RC car that can be used like augmented reality (Nintendo just released its mario kart thing)
If wyze ever releases drones, the controller can be used for that.
May potentially be used with the Robot vacuum cleaner or a lawnmower robot. You can take control of the bot. Not sure if it opens the devices for any kind of security risk.
**//Mod Edit: Title Modified to Enhance Search Clarity.