I think it should go mainly to a Childrens charity such as the Childrens Society. I would also like to see some go to the RSPCA as this is the time of year that lots of animals are bought as presents and then abandoned.
I also agree that Ebay should have a special auction section for these prizes - declaring which charity they will represent - I think this way more money will be raised.
JMO
Merry Christmas everyone.:-D