World Scout Jamboree

I have been chosen to represent my scout district and the U.K in America with the jamboree group. So far I have done Christmas fairs, bag packing in a local supermarket, pet sitting for my neighbours cat and painted my old school fences. I am planning to do some car washing and car boot fair and a scout quiz night but unfortunately I still have a long way to go if I want to achieve my goal of £3500. I would really appreciate any help in raising the amount I need as with out it I will not be able to go otherwise.