Visitors to the Hepworth in Wakefield are being asked to bring in their collections this weekend - however weird and wonderful.
"I Collect", held between 10am and 4pm today and tomorrow, has been inspired by the new David Roberts Collection.
Whether it's stamps, family photos, holiday souvenirs or football scarves - the gallery would love to see what visitors have gathered over the years.
Members of staff have been joining in too. Becky Harlow, Schools Co-ordinator, brought in her Mr Potato Head collection. She said: "I Collect.... Mr Potato Heads, because they remind me of my childhood, I simply love them!"
Other members of staff are showing off collections including anything mushroom-related, Yoshi paraphernalia, and model trains.
More top news
The father of a British victim of the Germanwings disaster has urged airlines to take action to look after pilots "properly".
A brighter, mild but windy afternoon with occasional showers. Unsettled start on Sunday with a mix of sun and showers later, feeling cooler
British Summer Time begins on Sunday. We may lose an hour in bed but the sun won't set until around 7.35 pm on Sunday evening