There was a fantastic version of the Sugarcubes' Birthday which had the Jesus and Mary Chain guesting on it. I think it was on the B-side of a 12". I had it, and lost it (i.e. lent and never got back, I guess). And have never since found it again. It became something of an obsession of mine in the days of Napster, but that version was never there.

If I were to become a born-again vinylhead, that would be my holy grail.