You might have heard of or seen our cow vans, which roam the country carrying our drinks from one place to another.
Trevor emailed us to say that he'd seen something similar (see image above) in a field alongside the M5 towards Bristol, and wondered whether it was something to do with us. It's not, but these cow bins are a great idea set up by Taylor Cow Bins to encourage recycling in both primary and secondary schools.
I cycle past some in East London on my way to Fruit Towers every morning and have often pondered over their origin, so I'm very grateful to Trevor and to Taylor Cows for solving and creating the mystery respectively.
The Beeb picked up on it too, so you can read more here.