The_Bottles - there's more of him at MySpace and FlickR - is spending a day without sight to raise money and awareness, and is after sponsorship. You may wish to offer this at this website: http://blindforaday.co.uk/ - although I can't work out whether I've given money or been declined thanks to the £#<{ing interface.
I'll try and find out another of giving.
Later:It is now fixed, and I've donated.