Get your mind out of the gutter. There's nothing illegal going on here because there are several ways that you can cash in on your body. Obvious places to start would be modeling or acting. Art models, for example, can make between $20 to $25 per hour. However, you can also participate in medical studies or sell everything from plasma, sperm, breast milk, and even donating eggs for approximately $5,000.
Those who enjoy writing may be able to make some money on the side doing freelance writing and perhaps even becoming a contract writer. How much you can earn will vary widely, as some kinds of jobs pay more and some kinds of writers (such as those with many bylines) can command more. Even if you earn just $50 per short piece you write for an online site, doing four of those per week would be $200 -- equivalent to $10,400 per year. You can look for gigs at sites such as Upwork.com, Fiverr.com, and Freelancer.com.
Using the money you already have to make more money is usually a pretty smart move. A service like Lending Club is a great way to act as a lender and earn interest on your money. Lending Club is the world’s largest online credit marketplace connecting borrowers and investors. Essentially you act in place of the bank, and lend out money at predetermined interest rates (that are typically higher than your average savings account).
As for other tips, all I can say is “a penny saved is a penny earned”. If you are running out of ideas to make money, start saving. Some quick “low hanging fruit” tips to save some quick cash include – switch to MetroPCS or Boost for cellphone (I only pay $20/month), switch auto insurance to Insurance Panda ($25/month), and start using GasBuddy (saves me like $100/month at least. I drive a lot).
While Etsy is fantastic for handmade goods that you’ve already created, if you’ve got killer designs that would look good on phone cases, t-shirts, or even wall hangings, pillows, and duvets, you can sell them on Society6 without paying anything to start. Society6 lets artists upload their designs and create their own shops where they choose what products their designs can be used on. That means one design can be used to make a whole range of awesome products that are printed and shipped on demand whenever someone buys from you. With top creators making thousands every month just from selling their designs.
It’s kind of like going the tutoring route, except you’re teaching English with a company like VIPKid (a big favorite of fans in our Ramsey Baby Steps Community on Facebook). Now, if the word teach makes you a little nervous, don’t worry. They’ll handle all the lesson plans and grading for you. But you do need to want to help others learn and be willing to guide a class online. Getting paid while helping others? This one is a win-win!