How can i make $250 easy?? im 14... and i need the money?

ok.. so my bf is being soo sweet and it taking me to c the trans sibarien orchestra for no reason, and i wanted to do something really nice for his birthday. u c, hes a huge bears fan, and i thought i would take him up to chicago where my gma lives, then go to the game. unfortunately i have no money.. and the cheapest tickets i could find r 110 each.. so i need 220 plus gas money and food money which should be about 250+.. so does any1 know where i can get 250 dollars b4 atleast november 20? that gives me a month.. and im 14 and hes turning 16.. and i want to take him to the rams vs. the bears game :)