I've been shredding artwork for a few years now. Its a reductive form of creating something new.
Recently, at an auction of one of Banksy framed illustrations the frame apparently shredded the illustration. The more I watched the video in its various incarnations on the internet the more I believe that Banksy's performance piece is a magic trick illusion.
IMO. there are two illustrations in the frame. One, the whole cloth piece is rolled down while the second, pre-cut illustration is slowly unwound to shredding noises.
I could be wrong of course but I suspect this may be true.
Looking for my shredded work?
Lake/Ice
Reflections on Mirror Lake
Broken Glass
Representational Ambivalence #1
to mention the most recent examples.