How about these.....
As you may know I made hundreds of poppies for the Royal British Legion. These ,of course, were coloured red.
I have made a small number of the same poppies and coloured in a blue similar to the NHS blue. They are completely weatherproof and as the stem is made of stainless steel they can remain outside indefinately. They also look good as an indoor decoration with dried flowers etc.
These could be sold and any profits could benefit an NHS or similar trust. What do you think?