Originally posted by UncleScratchy
If you haven't ever kicked her out of the party before you can load her up with all kinds of drow stuff and then kick her out. She will return to the docks area next to the entrance to the Harper hold and the drow stuff won't disintegrate. Just don't take the drow stuff back to the area where you exit the Underdark as it will then disintegrate. Apparently the game checks for any drow equipment when you are in that area and that's when it disintegrates.
Also, another way to get some drow equipment is with one of the mage familiars. I believe the one of the neutral mages summons a ferret familiar which is capapble of pick pockets. You pick pocket a drow for their items (although the ferret can only hold two), and have the ferret take them out of the underdark. Because the game does not run checks on the ferret's inventory, you get the drow items! This also works for the rift device, and basically any other item which the game runs checks on to destroy.