From their website:
"Brandalism has shared skills and techniques for 'subvertising' - the art of subverting advertisements. We start from the democratic conviction that the street is a site of communication, which belongs to the citizens and communities who live there. Our interventions are a rebellion against the visual assault of media giants and advertising moguls who have a stranglehold over messages and meaning in our public spaces, through which they force-feed us with images and messages to keep us insecure, unhappy, and shopping."
80 artists/600 designs. Be inspired.