It is possible to go to a tattoo parlor and get a number tattoed on your body to look like a holocaust tattoo

If you do not make up a false story about being a holocaust survivor in a legal situation like a court trial and simply have the tattoo then it is not perjury

But you definitely should not say there were dinosaurs who ate a Nazi guard who was about to throw you into a cage with a bear and a eagle that were going to eat you saving your life as part of a paid public presentation