This is a pre-owned item.
Ten playing cards are shown with their backs outwards. The faces are not shown. A spectator selects one and the magician selects another at random. When both cards are turned over they turn out to be the exact same cards!
The spectators become suspicious of the other cards thinking they are all the same. When the spectators ask to see the other eight cards they are found to be all blank face cards! Guess what? The spectators were right! The remaining cards were all the same!