Photo taken by me on our Bowl of Chalk tour in London.
“Art should comfort the disturbed and disturb the comfortable.”
"Chewing Gum Artist Ben- Wilson - Mellenium Bridge" YouTube. published by Fun London Guides - Julian McDonnell Films, 10 April 2015. youtube.com/watch?time_continue=3&v=LusKJIwrWgI
Ben Wilson is a street artist who paints on discarded chewing gum on sidewalks and streets. He has a great deal of art work on the Millennium Bridge in London.
The above picture was taken on our trip and was found on the Bridge.
The following Wiki link has further information about him and some of the articles about his craft.
Accessed 4 February 2018.