I don't think it'll work. Museums like to claim copyright over works which A) were created before copyright existed and B) would have had their copyrights expired long ago anyway. It's mostly a scare tactic. Big publishers will comply when they print books with images of famous paintings, but I can't think of a successful museum lawsuit against anyone for using famous art in a product. Can anyone else?<p>One thing often misunderstood about copyright by both creators and consumers is that it's automatic, it's owned by the creator, it doesn't transfer with the product, it doesn't transfer at all except through explicit written agreements, and it eventually expires. This means that all paintings are copyright by the painter and, since the Louvre cuts off at 1900, everything is expired and public domain.<p>So fire up those digital printers and make your own Mona Lisa or a remix!
Presumably part of Caravaggio's madness was due to toxic pigments (and he may have died from lead poisoning) but he is a fascinating character and an astonishing (and occasionally terrifying) artist!