From the website of the Franciscan Friars of the Renewal:
Feed 10,000 hungry children for a year without spending a dime?
A click of your mouse here is all it takes http://heroes.cnn.com/vote.aspx to cast your vote for Magnus MacFarlane–Barrow for CNN Hero of the year.
Magnus is the founder of Mary's Meals: a grassroots charity feeding more than 420,000 impoverished children in their place of education in 15 countries. It only costs $10 USD to provide a daily meal to a school child in Malawi. The $100,000 CNN prize will enable Magnus to offer nourishment and hope to 10,000 new children through Mary’s Meals. Learn more ways to help at www.marysmealsusa.org
I don't know much about current exchange rates, but the Mary's Meals website mentions that it costs about £6.15 to feed a hungry child for a year. Mary’s Meals provides daily meals in school for over 400,000 children in Africa, Asia, Latin America and Eastern Europe.