Strange unusable items in Camp McCarran (Get your flint on)

According to the wiki, the Flint and the Welding gun are indeed uninteractable and cannot even be picked up. There's no information if they were to be used for crafting or any other way. No marked quest in the game uses them up to this moment. They could become crafting items if future DLC packs add more crafting recipes and make them usable, but until now, with Dead Money and Honest Hearts, that hasn't happened yet.