You should just turn all the fiat you got from donations back in to BC/BTC/LTC and then send back an amount possible to the people who donated to you.
I get that your not gonna refund it will your own money and if people don't receive their full amount back, that is the cause of fluctuations. but you can't just donate it to the red cross organization.
Good overall announcement, I agree with you on a couple of points. GL with your own coin!