For those of you who do not know the meaning of an oxymoron
Oxymoron; expression with contradictory words: a phrase in which two words of contradictory meaning are used together for special effect,
Most of the examples in this post are indeed a play on words, but they lack the true meaning of an oxymoron.
Found missing, virtual reality, original copy, living dead………. I think you get the idea.
There are a few that are correct but most are not oxymorons.