Results of playing with ARCore sample code by Google, Unity and poor blender skills.
This sample is remix of default ARCore sample from Google. Original controller script was modified to allow anchor object to plane only once (after losing tracking process has to be restarted). Car can be controled with joystick on left.
Another sample based on default ARCore sample from Google. This time it allows to instantiate basketball playground and score some points. Ball will be thrown in same direction where camera is facing and force is applied with slider on right.