The Christian Institute issues cards in the style of donor cards, alerting readers to the fact that in the event of their death, the bearer does not want their kids adopted by homosexuals.
Edit: just to clarify, just in case anyone's making a mistake, I'm not even remotely anti-Christian. I just happen not to be one. In the words of the hoary old trope: "Some of my best friends...", and all that. And I am ashamed - that I share a species with the people who proposed and implemented that policy. Just not in the way that I'd feel ashamed if someone purporting to represent my beliefs did something like that. That's all.
Further edit: Since wednesdayschild asked, I've done a little digging and the contact details for the Christian Institute are:
"The Christian Institute, Registered Charity No 100 4774 seeks to promote the Christian faith in the UK
Registered Office: 26 Jesmond Road, Newcastle upon Tyne, NE2 4PQ
For more information contact: Simon Calvert on 0191 281 5664."
Anyone who wishes to contact them to protest against their seeking "to promote the Christian faith" in this way has my full support.