A child in a carry cot, a box of kittens, a false leg and a kitchen sink were among the items left on public transport in South Yorkshire.
Bus companies Stagecoach Yorkshire and First South Yorkshire have also had a lawnmower, 42 packets of bacon, a pair of crutches and an envelope containing thousands of pounds handed in at their depots over the years.
The lost property files have been made public during Catch the Bus Week - a nationwide campaign running this week to promote the benefits of bus travel.
Stagecoach Yorkshire Managing Director, Paul Lynch, said: “Almost 2.5 million people all over Britain travel to work by bus every day, and a million more use the bus as a vital back up, so it’s not surprising that we find some odd things left.
“Catch the Bus Week is a great way to remind people how easy and convenient bus travel is to get around. And from the items reported missing it’s clear that people use our local buses for a variety of journeys.
“We would like to reassure passengers that the lost child and box of kittens were reunited safely with their parents and owner.”
First South Yorkshire’s Managing Director, Ben Gilligan, said: “It’s nice to literally save someone’s bacon. The gentleman was very specific about how many packets were missing. And the owner of the lost pair of crutches called us so we could help him get home.
“Lost property records are an entertaining element of bus travel, but there are serious benefits that include helping the environment and improving air quality in our towns and cities.
“Congestion costs the UK economy at least £11 billion each year. If everyone switched just one car journey a month to bus that would be one billion fewer car journeys on our roads, and a saving of 2 million tonnes of CO2.”