After the Civil War, Daniel Sickles, famed for his eccentricity, made a practice of popping by a certain medical school to pay a visit to one of its special "guests." The guest? His leg, which had been amputated, and donated to the school, after the battle of Gettysburg.
[After his leg was shattered by a 12 pound Confederate cannonball, Sickles was carried off the field -- while smoking a cigar! His claim to fame? Having shot and killed Philip Barton Key (Francis Scott Key's son), with whom his wife was having an affair, Sickles made legal history as the first person in American to be acquitted on a plea of temporary insanity.]