Are you an interesting person or do you do a cool job? People are always looking for interesting people to officiate their weddings, and you could get paid for it. For example, if you're a skydiver who officiates weddings, you could get paid to host a sky diving wedding ceremony. Since most pastors don't do these extreme sports, it's a great side income for those that do.
Do you have a great idea for a product but don't know the best way to go about creating it? Well, you could submit your idea to Quirky. They'll screen your idea, and if they like it, they'll either develop it themselves or in partnership with a major brand. In the end, you'll get a cut of all the sales from the final product. For some inventors, this has only earned them $1,000s, but others have earned $100,000s through the platform.
Search for freelance writing and editing gigs. The rates for these jobs vary: you may be paid by the word, be offered a flat rate for a project, or in some cases can be paid an hourly rate. You typically won't be able to retain copyright over your work or collect royalties, however. Even so, by doing freelance work you can build a portfolio and make valuable connections which may later pay off with more stable job opportunities.