In May, to coincide with the premiere of Exit Through the Gift Shop in Royal Oak, Banksy visited the Detroit area and left his mark in several places in Detroit and Warren. Shortly after, his work depicting a little boy holding a can of red paint next to the words "I remember when all this was trees" was excavated by the 555 Nonprofit Gallery and Studios. They claim that they do not intend to sell the work but plan to preserve it and display it at their Detroit gallery. There was also an attempted removal of one of the Warren works known as Diamond Girl.
Banksy has published a "manifesto" on his website. The text of the manifesto is credited as the diary entry of British Lieutenant Colonel Mervin Willett Gonin, DSO, which is exhibited in the Imperial War Museum. It describes how a shipment of lipstick to the Bergen-Belsen concentration camp immediately after its liberation at the end of World War II helped the internees regain their humanity. However, as of 18 January 2008, Banksy's Manifesto has been replaced with Graffiti Heroes No. 03, which describes Peter Chappell's graffiti quest of the 1970s that worked to free George Davis from imprisonment. By 12 August 2009 he was relying on Emo Philips' "When I was a kid I used to pray every night for a new bicycle. Then I realised God doesn't work that way, so I stole one and prayed for forgiveness." A small number of Banksy's works can be seen in the movie Children of Men, including a stenciled image of two policemen kissing and another stencil of a child looking down a shop.
In August 2004, Banksy produced a quantity of spoof British £10 notes replacing the picture of the Queen's head with Diana, Princess of Wales's head and changing the text "Bank of England" to "Banksy of England". Someone threw a large wad of these into a crowd at Notting Hill Carnival that year, which some recipients then tried to spend in local shops. These notes were also given with invitations to a Santa's Ghetto exhibition by Pictures on Walls. The individual notes have since been selling on eBay for about £200 each. A wad of the notes were also thrown over a fence and into the crowd near the NME signing tent at the Reading Festival. A limited run of 50 signed posters containing ten uncut notes were also produced and sold by Pictures on Walls for £100 each to commemorate the death of Princess Diana. One of these sold in October 2007 at Bonhams auction house in London for £24,000.
Many home owners choose to display the traditional art and culture of their society or events from their history in their homes. Ethnic murals have become an important form of interior decoration. Warli painting murals are becoming a preferred mode of wall decor in India. Warli painting is an ancient Indian art form in which the tribal people used to depict different phases of their life on the walls of their mud houses.