Check with your local bank to see if they're giving away cash bonuses for opening up accounts. Banks run promotions like this all the time, so grab some real cash quickly if you're in need. It won't break the bank (no pun intended) but it will give you a quick $50 or $100 -- maybe even more -- when you really need it. You might need to deposit a minimum amount of cash (usually in the thousands) in order to qualify for these types of accounts (but not always).
Throw a bake sale if you like to cook. Choose classic recipes that are easy to make in big batches like chewy chocolate chip cookies, fudgy brownies, or vanilla cupcakes. Once you bake everything, separate your goodies into individual servings and place them in pretty packages like treat bags tied with ribbons. Set up a stand in your front yard or out on the street corner to get more traffic.