We just sent this email to: email@example.com
"Dear Millennium Seed Bank,
Having read about your recent cash struggles, we thought it best to add a donation button to our site and see if we couldn't raise some funds for you.
We hope to raise £2000, which we heard is approximately what it costs to ensure the survival of a single seed.
Maybe we could help further by putting forward the idea of "seed hosting," where more folks could also add donation buttons to sponsor single seeds?
This could help both financially and energetically as word gets out of the situation your wonderful and worthwhile project is facing.
In the meantime, we shall begin the process of raising the £2000 pounds and will spread the word to all that are interested.
Thank you very much for all that you do.
I personally am going to forward these two posts to everyone on my various email chains, in the hopes of building further momentum.