Young Harriet Dennis used the Queen as part of her efforts to deter dog fouling in Devizes.
Ten-year-old Harriet, of Osmund Road, took part in a competition to design a poster for Devizes and Roundway In Bloom committee.
Harriet’s design was chosen as the winning poster out of about 40 entries from Nursteed Community Primary School. Her picture features the message “There’s nobody who will touch your mess!” and underneath is a member of the public and the Queen standing next to dog mess.
Both are expressing disapproval with the Queen saying “Gross!”
Devizes mayor Pete Smith, who was on the judging panel for the competition, said he was struck by Harriet’s design.
“It was absolutely brilliant. It was bright, colourful and humorous,” he said.
Harriet did not know she had won until Coun Smith turned up to present her with a framed certificate and a prize of £5 at her school last Thursday.
Harriet said: “I drew the Queen in my picture because it’s her country and she wants people in it to be happy, but if there’s dog mess everywhere people are not happy. She is saying ‘gross’ to show she is not impressed by it.”
Harriet said: “People are always walking around dog poo and sometimes they accidentally step in it. People who own dogs who don’t clean up after their dog need to reconsider their pet choices.”
Harriet has a pet cat and two fish and her hobbies include being part of a drama club and trampolining at Bath University.
Harriet’s poster will be displayed around Devizes, on noticeboards including on the Kennet and Avon Canal towpath and in Hillworth Park.
Carole Berry, direct services manager at Devizes Town Council, said: “Dog mess has been a contentious issue in Devizes for some time and one of the ways of bringing it to people’s attention was to get children to design a poster.”