I need help selling 768 candy bars?

To get my trip to Washington DC completely paid for, I have to sell 18 boxes of candy bars; I've already sold 2 boxes. Each box contains 48 bars, and I net 50% profit from each bar ($24 towards my trip from every $48 box). I've already went around to most businesses, I'm not comfortable with going door to door. I do, however, have a job in my school cafeteria that pays $20 every two weeks, and I plan to put all that money towards DC as well. Sadly, I live in a small town where pretty much everybody has a relative or a neighbor selling these. So, how do I sell 768 candy bars in 1 or 2 months?