Donald Trump will be greeted to the UK by a blimp, portraying him as an orange, snarling baby.
London Mayor Sadiq Khan will allow protesters to fly the blimp over Parliament.
Trump will arrive in Britain next week to meet the Queen and Prime Minister Theresa May.
Britain regards its "special relationship" with the US as a pillar of its foreign policy, as it prepares to leave the EU
UK Correspondent Emma Keeling says the balloon is the result of a crowd-funding campaign, which raised more than $32,000.
"It's going to be very, very close to Westminster, so it's going to be right by Parliament Square garden and the balloon will be tethered to the ground and restricted from flying higher than 30 metres, and the Mayor [says] he supports the right of peaceful protest."
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