There are several RAFBF Victory Bells still in existance. The bells, which bear the legend "cast in metal from German aircraft shot down over Britain 1939-1945", come in many different shapes and sizes.
The Designer of the RAFBF Victory Bells
Known to his family as Dino, the designer of the victory bells was Corrado Antonio L Parlanti, a bronze founder who reportedly served in the Royal Navy during the Second World War. He was the eldest son of Ercole J Parlanti who cast the Golden Eagle for the RAF memorial on London's Embankment.
The majority of the bells produced were sold for a pound each to raise money for the RAFBF. Some, however, were cast and signed by men involved in the Battle of Britain. One bell sold for as much as £1200!
Lots of info here:
http://www.americanbell.org/forum/viewtopic.php?f=19&t=1151&p=3044