Have a look at this video on the BBC website: Chewing gum artist Painting miniature masterpieces.
While the video is in the Entertainment section of the BBC News website, I recommend to the powers that be to put it on the Religion and Ethics website in stead. While we do not know whether the artist Ben Wilson has a faith or not, his work is a clear example of redemption in practice a clear Christian Theological concept. To take something as annoying and silly as chewing gum on the pavement and to paint beautiful images on those discarded pieces of stickiness is Gods own work.
But its not only an example of the theological concept but actually shows a mode which undermines evil by creating good. Wilson’s work inverts the traditional logic of evil which is a parasite on good. Evil would have no other existence but a parasitical one. Thus the inversion turns something that is evil (admittedly mild in comparison with other examples), and turns it into good, not only reverting to how things were but creating something new and good. That is our work. That is why we are here.
How can you invert evil today?
Have a look at the flickr page of the many examples of his chewing gum art (from where I borrowed the above picture).