The best of us get stupid ideas which run through our heads day in and day out without finding an answer. That's why I came here:
A golf ball has dimples to reduce drag and increase flight distance (As you can read here). This works by creating a small "windshield" which causes the air to travel around the ball more smoothly and by doing this reduces drag.
What would happen if we were to apply this to a rocket or a lander? Does air pressure at Max Q change the dynamics so much that something like this won't have an effect? If it wouldn't work on rockets, could it improve airplanes?
A possible problem is the structural integrity being lowered or it even being impossible for the relatively thin hulls of a rocket body. The effect on a rocket might also be small since, as the article states
This allows the smoothly flowing air to follow the ball's surface a little farther around the back side of the ball, thereby decreasing the size of the wake.
which implies that the effect comes from the end of the ball creating less turbulence (not where such dimples could be created in a rocket so maybe that's better for a plane?).
A German video shows this used in an engine block's air intake system to increase static pressure and air flow. So the spin of a golf ball is not needed for the effect.