A crowdfunder to create a six metre high inflatable version of Donald Trump wearing a nappy which organisers plan to fly during his visit to London has smashed its £5,000 target.

But despite meeting the costs to create the giant blimp version of the US president, organisers are now battling the authorities for permission to hit the skies.

A description on the crowdfunding website states: 'I am a six metre high inflatable orange baby with tiny hands. Please help me fly.

'Make our six meter high orange, inflatable baby with a malevolent face and tiny hands fly over central London during Trump's UK visit.'

It added: 'So when Trump visits the UK on Friday, July 13 this year, we want to make sure he knows that all of Britain is looking down on him and laughing at him.'