Bobblehead - Endurance

 is one of a total of twenty Vault Boy Bobbleheads found throughout Fallout 3. It permanently improves the player's Endurance by 1, to a maximum of 10. The inscription on its base reads "Always be ready to take one for the team".

Location
Found inside the Deathclaw Sanctuary, close to the entrance, on a small platform under the rotting brahmin corpse.
 * http://www.youtube.com/watch?v=mMdrZwug54A