A Banksy painting that shed itself to pieces by a hidden shredder at the moment of sale was supposed to shred in full, a video released by Banksy on October 17 suggested. Onlookers gasped and laughed after the bottom half of "Girl with Balloon", one of Banksy's best-known works, was sucked into a hidden shredder as the hammer fell on October 5 on a final bid of 1,042,000 pounds ($1.38 million) - matching Banksy's all-time record.