Nelson's Victory-replica deliberately burnt to ground
The Torrington Cavaliers fund-raising group, of Devon, hoped to raise £57,000 - the cost of the original Victory - with the event in the town.
The group spent two years building the 100ft-long half-size mock-up.
Hattie Hill, 11, and her sister Katie, nine, of Welcombe, lit the fire after their godfather won an online auction.
Nick Hill, 45, who lives in Hong Kong, passed the honour to the girls after bidding £325 on eBay.