Is it possible to raise $300 in a week?

Im going to Anaheim, California in july for fccla, and i need $300 by this friday. Probably not possible/: But does anyone know how any good ways to make money? I have boxes of chocolate $1 a bar and theres 50 bars. I get half the profit wich is $25. Would those help? Also i can go to buisnesses or call them and ask them for a sponsor ship of$100 to go on the back of my t shirt? But im SO not good at talking to people, I get all shy and quiet and its akward/: can i raise the money, and how?