Left to right, astronauts Alan Shepard, John Glenn, Walter Schirra, Scott Carpenter, Gordon Cooper, Deke Slayton, Gus Grissom, and Bob Gilruth, director of the Space Task Group
"From the NASA Archive: Astronauts Inspect Their Butt Molds"
July 1st, 2010
Each of the Mercury 7 astronauts had a mold made of his backside, so engineers could build perfectly fitted seats for the spaceships. These personalized couches were supposed to help the guys withstand the incredible G-forces experienced during launch.