"Not many celebrities would sue you for using their face in a morph because they would look like a sad idiot if they did." Are you willing to risk everything you own on that theory? Lots of high profile celebrities have sued over such things, Tom Cruise being one example. And even if the celebrity doesn't sue someone else may. If you made a duplicate of Hugh Jackman then Hugh might sue, or Marvel Comics or the company that made the x-men movies.