UGC - User-Generated Content is usually UMC - User-Manipulated Content... Just messing with media.
The most confident artists - and those with multiple sources of income - encourage sampling and mashing of their material. Check out all the Music Mashup categories on Wikipedia.
But can't this be as easy as looking at existing content from a differnt angle? Here is what you see if you separate the leaves of one of Conde Nast's beautiful Point of Passion print inserts... No point. Just art.