Royals Give Her the Boot! Princess Kate Gets Physical in 'Welly Wanging' Contest, Cracks Up Harry "Make Catherine do a silly walk!" William goaded during a morning with children associated with royal charites By Simon Perry Published on October 26, 2015 10:30 AM Share Tweet Pin Email Photo: Tim Ireland/AP Want to keep up with the latest royals coverage? Click here to subscribe to the Royals Newsletter. Just call Princess Kate head of the Ministry of Silly Walks. To teasing from her husband, Prince William, who called out “Make Catherine do a silly walk!” Kate – in a $575 “Meg Space” dress by U.K. designer Tabitha Webb – took part Monday in a skit organized by Aardman animators at the London headquarters of the British film body, BAFTA. RELATED VIDEO: Celeb Moms Spill: No Mother Is Perfect, and That’s Okay! She and William, both 33, were with Prince Harry, 31, at the biannual get-together of the causes they back, the Charities Forum, which encompasses more than 30 organizations associated with the royal trio. After a sneak-peek screening of Aardman’s upcoming special Shaun the Sheep: The Farmer’s Llamas, the royal trio took turns trying to make their own Shaun the Sheep alongside children from charities they support, including EACH Hospices and WellChild. And continuing their brotherly rivalry, William and Harry competed in a round of “welly wanging,” in which they used rubber boots to take aim. (William was the clear champ.) Later, there will be more film fun for the trio, as they are set to dress up for the world premiere of new James Bond movie Spectre at London’s Royal Albert Hall.