Gravity does a pretty good job of that on its own.
The FAA has some rigid regulations regarding what can fly and what can't, after all, we don't want amateurs raining smoking bits of poorly designed vehicles down on populated areas.
A few years ago, a Japanese telecom satellite failed to reach it's target orbit. With millions of dollars at stake, a smart guy up at Princeton figured out a way to expend a little of the satellites' fuel to send it slowly around the moon and back placing it precisely where it needed to be. This was not in the mission plan and was not considered until the sat had failed in the first place.
The Russian company Energia, along with a private firm is currently looking at the the concept of sending tourists around the moon and back in a similar manner. And with no atmosphere on Luna to get in the way, an orbit could be designed to carry a vehicle within a few kilometers of the surface. Talk about a scream of a ride!
http://www.msnbc.msn.com/id/6558855/The Russians also carried the first tourists up to ISS despite NASAs initial objections. I doubt NASA would be able to stop the Russians, Japanese, Chinese, or Indians from going where they please.
Once the cost of retrieving the Helium III or platinum gets reduced, we could see a new goldrush, or rather Moonrush.
http://tinyurl.com/ytb7xp