I found bluetooth ear-pods on a shared car in London. Was Friday the 22nd of October 2021 afternoon. I can post it if you think it’s yours need description & location if the car.
(Hameed on 26 Oct 2021)
When: 27 Nov 2022
Where: Gloucester Road tube station(51.4943° N, 0.1826° W)
My partner lost a very precious piece of antique jewellery yesterday, possibly around the Gloucester Road area. The item is a hinged pendant. It is a crucifix, although it is shaped more like a flower or an eight-pointed star. There is a hinged element directly above the crucifix/flower/star. The colour is silvery-gold, with some bronzing around the hinge and at the top. The detail is ornate and filigree, featuring multiple coiled pieces of metal, around a braided circular element.

Could one of these be yours?