Lucky shades (Fallout 3)

Lucky Shades are found on a mannequin in a Scavenger shop Southwest of Tenpenny Tower near the border of Fallout 3's game area. It can be found in a red building, adjacent to a bombed-out building featuring a parking lot. The mannequin is in the back of the shop directly straight from the entrance. The shop also has every ingredient needed to make one of each custom schematic weapon. However, the vendor doesn't sell everything he has in the store, theft might be necessary.

It seems the Lucky Shades can fall off the mannequin. They land on the mannequin stand, and the player character cannot choose to pick them up with the cursor. It seems to happen before the PC enters Lucky's store. So far at least two people have noticed this.

http://www.gamespot.com/pc/rpg/fallout3/show_msgs.php?topic_id=m-1-46374456&pid=918428

A temporary fix was also recently found at GameFAQs

http://www.gamefaqs.com/boards/genmessage.php?board=939932&topic=46400229&page=1