We can create powder juryrigging recipes, turning one into another, but the bottles may be a bit tough. You would need to use a FormList in the Recipe, and I'm not sure the game is programmed for that. If it is possible, then it'd be rather easy to introduce that into the game. It would make surviving all that little bit easier. OWB adds this into the game. If you hand the SInk any empty bottle it turns them into purified water. This maybe beyond your scope but WMX for Fallout3 would be nice. Though I tired it myself and found it hard to apply the current weapons mods to a lot of the FO3 Unique weapons. The metal blaster comes to mind. only 1 of the 3 mods would really work with it(it's a laser shotgun so a scope is a bit worthless, ditto for a beam splitter (which might actually make the gun either over powered if if it spits each of the beams into 2 or underpowered if it reduces it to just 2 beams), so only the optics would be of use)