World War One 'Dazzle Ship' recreated in Liverpool
12 June 2014 Last updated at 21:19 BST
During World War One, some 2,000 warships were painted in reds, oranges and greens to confuse German U-boats.
They were known as "dazzle ships", and now the technique's been recreated as part of the Liverpool Biennial of contemporary art.
Will Gompertz reports.