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How Can I make money fast....ish?

For my 8th grade class trip Im going to cedar point. I want a digital (preferably a Digital slr) camera to take pictures of my friends so that i can remember them if i never get to see them again. (My school is from kindergarden to 8th grade and at least 30% of my class has been with me from kindergarden and 60 from 1st grade) Im only 13 years old and the camera is almost 2000 dollars. My parents said they would think about giving me an allowance but that would be no more than 5 dollars a week --if im luucky:( Right now its cold out and its going to be winter in a month so i could shovel snow and thats about the only thing i can think of. thanks in advance.