Galvanised or stainless steel (or any other waterproof grey metal) window boxes

[MuffinMclay]

Anyone know where I can get these from? I've been googling but haven't found much.
We don't really have any external window sills so they'll have to be ones that sit in brackets attached to the wall.
I've seen the ones on featuredeco.co.uk, but was wondering if there were any other ones out there.

Some here .

And some here , though not sure you can order online.

And another one .

I like the first one but it looks like that is for hanging over railings/balconies. I want something like that but with matching steel wall brackets.

Second lot are a bit too pricey.

It doesn't have to be online. I am happy to travel in my quest for the perfect window box.

Third one is perfect, thank you.