Ahead of Donald Trump’s controversial state visit to the UK next month, protesters are wasting no time in preparing the most imaginative means possible of ridiculing the US president.

Step forward “Dumping Trump”, an enormous robot rendering of the president astride a golden lavatory, smartphone in hand, trousers down and with his long red tie dangling into the bowl between his thighs.

The 4.9 metre (16 foot) high machine also has an audio function which reproduces some of Mr Trump’s most famous pronouncements, including: “No collusion”, “a witch-hunt”, “you are fake news” and “I’m a very stable genius.”

It also makes fart noises.

The machine was designed by US science writer and dinosaur expert Don Lessem, who was an advisor on Jurassic Park and has previously built animatronic dinosaurs.

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It is currently in China but is being sent to London in time for Mr Trump’s June arrival.

It’s being shipped “on a freighter whose name I won’t disclose for fear Trump will bomb it,” Mr Lessem told The Daily Kos.

“My goal is to create this year’s attention-getting and bile-producing sequel to the Trump baby balloon, and one that could be more easily deployed at rallies all over the world,” he said.

“I think we need a focus to our rage, and as many and large reminders as possible of what a disgusting disgrace this oaf is to humanity.”

Inflatable Donald Trump baby taken to Paris to join protests against president's visit for WW1 centenary

Last year’s Trump baby balloon – an inflatable 6-metre replica of the president wearing a nappy and holding a smartphone – was flown in London during the president’s last visit.

There are reportedly plans afoot to fly a balloon five times larger than its predecessor.

Mayor of London Sadiq Khan has said any request to fly such a balloon would be subjected to the same rules as last year – which gave the protest balloon the official green light.

Mr Trump is expected to spend part of his visit at Buckingham Palace where a state banquet will be staged in his honour, but he will not be staying at the Queen’s royal residence.

Prime Minister Theresa May hailed the visit – planned for 3 June to 5 June – as a chance for the UK and the US “to strengthen our already close relationship”.