I want to put a copy of the Koran in a bucket of urine and call it an artwork.
I'd just call that the misuse of a bucket - and a waste of good piss.
Good point. Can you IMAGINE the outrage if one was to do this? However, Piss Christ was just fine and dandy for our liberal friends.
Add some feces and it'll be perfect.
Well, now that would be considered derivative. Maybe you should put porn photos and elephant dung on a painting of Mohammed... oh, wait, that would be derivative too. Maybe you could put Mohammed into a profane comedy cartoon... uh, that's not original either. Sorry. I'm stumped. You'd be hard pressed to insult Islam in some artistically unique fashion, given what's already been done with Christianity.