The 12in stickers are being sold to raise money for groups including the British Humanist Association, which organised for atheist posters to be displayed on the side of 800 buses around the country.
That campaign attracted complaints from more than 300 people, but the provocative messages now look set to get a wider airing on the windows of non-believing motorists.
The stickers cost £2 each or £12.50 for a packet of ten. Also available from the official Atheist Bus Campaign website are T-shirts and badges bearing the sceptical slogan: "There's probably no God. Now stop worrying and enjoy your life."...