Be careful of your hair design. Frank & Donald Smith of Orlando, Florida own the patent on a method for styling hair to cover bald areas using only the individual's own hair -- AKA, the combover. (U.S. Patent No. 4,022,227). Actually, the patent issued in 1977 and appears to be expired.
Some potential infringers:
The Smiths were awarded the 2004 Ig Nobel Award from Harvard University for their contribution to the engineering field.
Other winners included the authors of a published report "The Effect of Country Music on Suicide" as well as Jillian Clarke, a Chicago high school student who investigated the scientific validity of the Five-Second Rule.