"A poo in a bra, hanging in a tree."
Andy Wilcott, who runs the clean-up operation at Glastonbury Festival and other festivals, did not hesitate when we asked him what the strangest thing he and his team had ever found was.
He added: "We just wondered 'how the hell has that happened?'"
Getting rid of the litter and rubbish left behind by almost 200,000 festival fans is a mammoth operation, reports Somerset Live.
READ MORE: Glastonbury Festival 2022: Scores of revellers catch Covid days after event
'We found a cannonball once'
It starts way before the festival has even finished, with 2,500 litter pickers working through Glastonbury, scouring the Worthy Farm site in Pilton, Somerset, to clear the fields of every scrap of waste, generated by a temporary population the size of a city.
With an army of litter pickers - and hordes of partying music fans - it's not a surprise that a smelly bra hanging from a tree has not been the only odd find over the years.
Mr Wilcott said: "We found a cannonball once, and we've found mannequins. We find a lot of lost wallets and jewellery and millions of phones. The lost property system is incredible. They try for months to return items. Phones can normally be returned."
Glastonbury 2019 - a turning point for cleaner festivals?
We were speaking to Mr Wilcott at the start of the Glastonbury 2019 clean-up.
The state of the Glastonbury site was under intense scrutiny at the end of the 2019 festival, after organisers declared they wanted to tackle plastic waste. The sale of single-use plastic bottles was banned at the 2019 festival with people urged to refill their own containers at water points.
Organisers also urged people camping at the festival to remove their tents afterwards - reversing a trend for some people to treat them as disposable. It is understood that retailers were asked not to market tents as disposable items to prevent huge mountains of waste left on the camping fields.
The festival said that 99.3 per cent of all tents were removed from the festival site.
Mr Wilcott said the numbers of empty NOS or nitrous oxide cans recovered from the site also went down in 2019.
"There's been a decrease in NOS cans this year. It is a trend downwards. We noticed it at other festivals last year when there wasn't a Glastonbury and I'd say it is lower here than at other festivals."
Why aren't the bins at Glastonbury bigger?
Mr Wilcott also explained why bins at the festival were often overflowing - leading to ugly scenes with trash piled up around them or even just dropped across the fields.
"There are 15,000 bins and they have to be emptied manually," he said. "If they were any bigger they wouldn't be able to lift them up. People still use them even when they are overflowing. They will leave waste nearby which still helps with collecting it."
He also points out that replacing them could also pose a waste issue.
"The bins themselves are recycled - they are made from old oil drums. Replacing them could also be an issue," he said.
READ NEXT:
- Who is your favourite Glastonbury headliner of all time?
- Glastonbury Festival: A beautiful mess - but do revellers need to be more responsible for their litter?
- Coldplay's Chris Martin enjoys a pint at near pub on way home from Glastonbury
- Years & Years' Olly Alexander tells Glastonbury crowd how much he 'loves being gay'