How about the hroud of Turin? Fake one day and Genuine the next. A very clever fake if not real.
barbra ann
I certainly believe in the validity of the Shroud, which is strongly supported by the evidence from the Sudarium of Oviedo.
And I have a predisposition to believe that the Ethiopians do indeed possess the Ark, which IIRC went missing under Manasseh. They have been celebrating the Ark’s presence for a very long time, in the holiday known as Timkat.