Fallout: New Vegas Crafting

Basics
Crafting is used for building things, such as custom ammunition with the use of the Repair skill. (e.g. .308 JSP and .44 Magnum Semi Wadcutters), custom weapons using the Science skill, and through the Survival skill for cooking food and making medical items.

Items
Bleak venom Healing powder (Fallout: New Vegas)