World-famous street artist Banksy designed T-shirts as a show of support for people facing a trial, and the gesture seems to have been an overwhelming success: Thousands queued outside shops in the British city of Bristol to buy the limited edition garments.

Five stores across the city were each selling several hundred of the grey souvenir shirts, in aid of the four people facing trial in relation to the toppling of a statue of slave trader Edward Colston.

The shirts have a picture of Colston's empty plinth with a rope hanging off, debris and a discarded sign nearby, and Bristol written above.

Banksy said proceeds from the sale would be given to the four people accused of criminal damage and facing trial next week in the city.

In a post on Instagram, Banksy said: "Next week the four people charged with pulling down Colston's statue in Bristol are going on trial."

"I've made some souvenir shirts to mark the occasion. Available from various outlets in the city from tomorrow. All proceeds to the defendants so they can go for a pint."

Bristol-based Banksy said sales would be limited to one per person and each T-shirt would cost £25 plus VAT.

The names of the five shops – Frontline Video in St Paul's, Hakuna Matata, That Thing, Friendly Recs and Rough Trade – were announced on Saturday by local radio station Ujima Radio.

Hundreds of people queued outside the Rough Trade record shop in Bristol, among them were brother and sister Tom and Rosie Levins.

"When we got in the queue, I don't think we were really confident," Miss Levins said.

Her brother added: "I collect all the Banksy stuff I can get hold off. When stuff comes up in Bristol and you get a chance ..."

On Monday Rhian Graham, 29, Milo Ponsford, 25, Jake Skuse, 36, and Sage Willoughby, 21, face trial at Bristol Crown Court.

The bronze memorial to the 17th-century slave merchant was pulled down during a Black Lives Matter protest on June 7 last year, before being dumped in Bristol Harbour and later recovered by Bristol City Council.

Charges allege that the four defendants, without lawful excuse, jointly and with others, damaged the statue of Edward Colston, a listed monument belonging to Bristol City Council.

It is claimed that the defendants committed the offense "intending to destroy or damage such property or being reckless as to whether such property would be destroyed or damaged."