Nightstalker egg

The nightstalker egg is a miscellaneous item in Fallout: New Vegas.

Characteristics
Nightstalker eggs are found on the corpses of nightstalkers (presumably females). When they are found, it is unusual to find more than one. They are used in the production of mushroom cloud (the recipe requires 1 in each set of ingredients), and in the quest Bleed Me Dry.

Locations

 * There are several clutches in the Z-9 Crotalus DNA preservation lab.
 * Found randomly on Nightstalker's which are prominent in Bloodborne cave.