http://www.thegreatbritishduckrace.co.uk/
"In 2007 we smashed the Singapore World Record by racing 165,000 yellow plastic ducks down the river Thames and raised over £100,000 for 440 UK charities – thank you so much for your support and generosity.
For 2008 we want to do it bigger and better; we will be attempting to race a quarter of a million of our little yellow friends down the 1 kilometre race course! This will break the record we already hold, and prove to the rest of the duck racing world that Great Britain does it better!!!