Everyone knows there's a side quest for the Seraphim that ends with the finding of a "Magic Sabre of Light" and a journal that suggests extraterrestrial origins for all Seraphim (and even Dragons). Now, unlike the "Jason Voorhees" items, the lightsaber isn't restricted to a particular class (at least I don't think it is, since I didn't see any class name in it's description). It would seem that making the item a unique reward to a unique quest for the Seraphim only is "restriction" enough.

Are there any mods or "utilities" that would allow a player using a different class to get ahold of one of these. Can I just hop onto Multiplayer, have someone hand me a lightsaber, and then export my character back to the Single Player game?