Blast Off Pajamas

 are pre-war children's clothing found in Fallout 3.

Location
It can be obtained by reverse-pickpocketing (put a clothing article while pickpocketing) Bumble in Lamplight Caverns. It offers no bonuses to the player and is merely for show. NPC's or child NPC's will not react to the PC any differently.

Bugs

 * The pajamas will glitch through the lower left hand corner of the pip boy screen, almost covering the 'weapons' menu.