Bobblehead - Explosives is a Fallout 3 item, a Vault Boy Bobblehead. It permanently improves your character's Explosives skill by 10, to a maximum of 100.
Location
In the Sealed Cistern near WKML Broadcast Station. The manhole is tucked into the rocks behind the station (see picture on the right).
Video
Obtaining Bobblehead Explosives [1]
