Mum had a £50 scone in the freezer for years.
She had just been to the bakery and bought a scone - she got to the corner and realised that she had dropped a £50 note from her pocket in the 20 feet or so from the shop, and the only other person there was a very cheery street sweeper (no wonder).
So she marked it up to bad luck and kept the scone in the freezer (and showed everyone ‘want to see a £50 scone?’).
I think we threw it out when she died.