A giant rendering of US President Donald Trump astride a golden toilet while tweeting has appeared in Central London ahead of protests against Mr Trump’s state visit.

The 16-foot model, nicknamed “Dump Trump”, reportedly also has an audio function that makes fart noises and repeats the president's most famous statements, including “no collusion”, “witch-hunt”, “you are fake news” and “I’m a very stable genius.”

“Dump Trump” appeared early on Tuesday in Trafalgar Square, ahead of the planned demonstration.

It was designed by US science writer and dinosaur expert Don Lessem, who said he spent $25,000 of his own savings for it.

The model joins an extravaganza of imaginative props that protesters have come up with to ridicule Mr Trump during his visit.

Trump toilet paper, baby blimb and Corbyn - UK protests Trump Show all 23 1 /23 Trump toilet paper, baby blimb and Corbyn - UK protests Trump Trump toilet paper, baby blimb and Corbyn - UK protests Trump A Trump supporter argues with opposing demonstrators after being hit by a milkshake during a rally against the president's UK visit in London Reuters Trump toilet paper, baby blimb and Corbyn - UK protests Trump A protester wears a costume depicting President Trump as Putin's puppet Tom Batchelor / The Independent Trump toilet paper, baby blimb and Corbyn - UK protests Trump The famous Trump balloon rises above Parliament Square in London while the president meets with the prime minister EPA Trump toilet paper, baby blimb and Corbyn - UK protests Trump A 20ft statue of Trump tweeting while sitting on a golden toilet stands in Trafalgar Square Tom Batchelor / The Independent Trump toilet paper, baby blimb and Corbyn - UK protests Trump Labour leader Jeremy Corbyn adresses protesters at an anti-Trump demonstration near Downing Street in London PA Trump toilet paper, baby blimb and Corbyn - UK protests Trump A protester holds a sign referring to President Trump's insult towards London mayor Sadiq Khan, which he tweeted as he landed in Britain yesterday Tom Batchelor / The Independent Trump toilet paper, baby blimb and Corbyn - UK protests Trump Protesters carry a baby Trump effigy locked inside a cage Tom Batchelor / The Independent Trump toilet paper, baby blimb and Corbyn - UK protests Trump A video of Boris Johnson deriding President Trump's ban on travel from a number of predominantly Muslim countries is projected on to the side of the Houses of Parliament on the fist night of the president's visit @LedByDonkeys Trump toilet paper, baby blimb and Corbyn - UK protests Trump A Trump supporter is escorted by police after being covered in milkshake at the protest in Parliament Square in London PA Trump toilet paper, baby blimb and Corbyn - UK protests Trump A face mask is placed on a pile of horse manure in the anti-Trump protests in London Tom Batchelor / The Independent Trump toilet paper, baby blimb and Corbyn - UK protests Trump Labour leader Jeremy Corbyn speaks during an anti-Trump protest near Downing Street in London EPA Trump toilet paper, baby blimb and Corbyn - UK protests Trump Protesters fly the baby blimp down Victoria Street near the House of Commons in London Tom Batchelor / The Independent Trump toilet paper, baby blimb and Corbyn - UK protests Trump A man sells Donald Trump toilet paper during protests at Parliament Square in London PA Trump toilet paper, baby blimb and Corbyn - UK protests Trump A sculpture in Trafalgar Square teases a milkshakeing of the president in keeping with the recent trend Tom Batchelor / The Independent Trump toilet paper, baby blimb and Corbyn - UK protests Trump A comparison of approval ratings between Trump and Obama is projected on to the Tower of London @LedByDonkeys Trump toilet paper, baby blimb and Corbyn - UK protests Trump A man dressed as President Trump takes part in a protest in London Reuters Trump toilet paper, baby blimb and Corbyn - UK protests Trump Environment activists take part in the protest in London Reuters Trump toilet paper, baby blimb and Corbyn - UK protests Trump Protesters gesture at the Marine One helicopter which is carrying President Trump around London during his visit Getty Trump toilet paper, baby blimb and Corbyn - UK protests Trump A woman protests holding a Trump doll and a badge for "Soho Mafia" near Downing Street during Trump's visit Tom Batchelor / The Independent Trump toilet paper, baby blimb and Corbyn - UK protests Trump A hat bearing the title and likeness of the USS John S McCain, the ship that was recently hidden from Trump due to his dislike of the deceased US senator, is projected on to Madame Tussauds in London @LedByDonkeys Trump toilet paper, baby blimb and Corbyn - UK protests Trump A protester holds a placard depicting Trump the snake constricting press freedom Reuters Trump toilet paper, baby blimb and Corbyn - UK protests Trump An anti-Trump and anti-Brexit banner is raised in Trafalgar Square Reuters Trump toilet paper, baby blimb and Corbyn - UK protests Trump A man dressed up as a Trump gorilla stands in a cage in Parliament Square in London AP

They include the infamous “Baby Blimp”, a giant balloon depicting him as a baby in a nappy holding a smartphone that will fly over Parliament Square, and a series of projections on London landmarks by anti-Brexit group Led By Donkeys.

One projection compared Mr Trump’s and Barack Obama’s approval ratings in the UK, reportedly to make the US president aware of his unpopularity here.