Walk on the moon, and people want a piece of you. It can get to a guy. For Apollo 11 commander NEIL ARMSTRONG, the fiber that finished him was hair. An Ohio barber sold clippings of Armstrong's hair for $3,000 to a middleman, who got them to a Connecticut collector of curls from Abraham Lincoln, Charles Dickens, Marilyn Monroe and others. When news got back to Armstrong, he had his lawyer shoot a letter to the barber demanding the return of his hair or a $3,000 donation to charity. But the barber had already spent the cash, and the collector refused to hand over the goods, though last week he offered to make the $3,000 charitable donation. No word yet on whether that makes the cut.