Banksy has released a video showing how he secretly built a shredder into one of his paintings that self-destructed after it was sold for more than £1m. The framed Girl With Balloon, one of the artist’s best known works, was auctioned by Sotheby’s in London. Moments after the piece was sold, the canvas of a girl reaching for a heart-shaped balloon shredded itself.

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A post shared by Banksy (@banksy) on Oct 6, 2018 at 10:09am PDT