Among the belongings left on buses and coaches in 2021 were some Ann Summers lingerie, a coffin-shaped wallet, an NYPD hat, a vehicle registration plate, a ukelele and a large toy sword.

The Oxford Bus Company has revealed the unusual items which were left on its services by passengers last year.

Other items left behind were a baby bottle steriliser, tennis racket, scooter and a cat collar.

The most common items left on vehicles were face masks, mobile phones, umbrellas and shopping.

Staff at the Oxford Bus Company customer services department recorded 1,688 items lost in 2021 and 345 items were returned. The volume of lost items was around 10 per cent lower than in 2020.

Oxford Bus Company was the first bus operator in the UK to use new technology to make it easier for passengers to be reunited with their lost belongings.

In 2019 it partnered with the innovative NotLost platform so it can digitally log misplaced items quickly and the system helps match them to the rightful owner.

Passengers who reclaim items pay a £1 administration and storage fee for the return of their belongings to help towards costs. There is also a postal service option available for returns. Unrecovered items are donated to local charities, or safely disposed of after a set period of time.

Andy Morison, head of customer experience, said: “We’re proud of our record at managing lost property and work hard to help reunite items with their owners. Misplacing a personal item can be a stressful experience and so we use technology to help make it easier for people to get their belongings back.

“We have highlighted some of the unusual items that are left on our buses and coaches as a way to remind people that lost items are kept, so it is always worth checking via our lost property portal on our website.”

Oxford Bus Company has previously revealed lost items in recent years have included a letter detailing one passenger's sexual fantasies.

In 2018 a saucy note, which detailed a list of "things the writer wished to do to its recipient", was found.

The love letter, written from a woman to a man, was disposed of, the company said.

In 2020, there was also a lightsaber, a fireman’s hat, a Soviet Union hat, and a Donald Trump toilet roll left on buses.

Oxford Bus Company's 2020 top 10 lost items:

• Ann Summers lingerie

• Coffin shaped wallet

• NYPD hat

• Vehicle registration plate

• Large toy sword

• Guitar

• Baby bottle steriliser

• Tennis racket

• Scooter

• Cat collar