Gromit Unleashed was a public charity art trail led by Wallace & Gromit’s Grand Appeal and Aardman Animations, in which 80 giant artist-decorated fibreglass sculptures of Gromit were displayed on the streets of Bristol and the surrounding area between 1 July and 8 September 2013. At the end of the art trail, the sculptures were auctioned to raise funds for Wallace & Gromit's Grand Appeal, the Bristol Children's Hospital Charity. The Grand Appeal pledged to raise £3.5 million for state-of-the-art equipment for Bristol Children's Hospital, including an intraoperative MRI scanner, family facilities and child-friendly artwork to help save the lives of sick children at the hospital. All funds raised by Gromit Unleashed contributed towards this. The project follows the concept of the "Land in Sicht", the original Swiss project by artistic director Walter Knapp which inspired the subsequent worldwide exhibition "CowParade" and similar exhibitions in other cities, including Wow! Gorillas which took place in Bristol in 2011. To date Gromit Unleashed has raised over £5 million for Bristol Children's Hospital.
Gromit is a dog belonging to an eccentric inventor, Wallace, in a series of claymation films produced by Aardman Animations, three of which have won Academy Awards: The Wrong Trousers,A Close Shave and Wallace & Gromit: The Curse of the Were-Rabbit
On 1 July 2013, 80 fibreglass decorated sculptures of Gromit were distributed around Bristol and the nearby rural area. One was also placed at London Paddington station. A few days later two were vandalised, causing some public outrage. Sculptures were decorated by a range of artists and celebrities, including Joanna Lumley, Sir Peter Blake, Trevor Baylis and Jools Holland. The Royal Mint and mosaic artist Stephanie Roberts created a special Royal Mint Gromit, decorated with coins. US Animation studio Pixar contributed Gromit Lightyear, based on their character Buzz Lightyear. The sculptures were auctioned in October to raise funds for Bristol Children's Hospital.