Banksy Exhibitions, Banksy Originals Marks and Stencils. London, November 2010 17 April, 20176 June, 2017by banksyunofficial “Marks and stencil” opened on November 27 and was organized by Pictures of Walls. It had some new Banksy originals for sale as well the “Choose your weapon” print which sold for 450 GBP. Choose your weapon