Websites aren't too dissimilar to stocks. Many are junk, but some can generate value for you, making it a strong potential business idea if you have an eye for spotting the diamond in the rough That’s why, like stocks, they are bought and sold all the time. You can buy and sell websites as a side business idea in the hope of generating future earnings based on their user traffic, current revenue intake, domain name, or some other factors that might be a hidden cash cow everyone else has overlooked. Interested? Check out marketplaces like Flippa and Flipping Enterprises to learn more.
If you don’t mind parading yourself around in public places as a side business idea, and enjoy a little attention, then working as a human billboard can pay a surprising amount of dividends. Renting out your beard, for example can earn you as much as $5 a day while having a brand logo tattooed on your shaven head for five years could pay as much as $7,000—though this type of earning opportunity is admittedly rare. This business idea is definitely not for the faint of heart, and is a little extreme for me, but nonetheless it's been done as a side hustle for many people. You can start by holding a placard or wearing a sandwich board. If you think this is a good side business idea, you can go all the way and turn it into a full on small business idea with enough hard work—plus you won't have to deal with all the issues other more complex businesses have to constantly think about (like reducing churn).
A real estate appraisal business can be operated from home, on a part-time basis, making for a fun side business idea if you have the credentials to back it up. A perfect option if you want to keep your day job while earning a little extra on the side. You won’t need a college degree to start in on this business idea, but you’ll need bankable appraiser credentials (including relevant training and professional licenses), strong knowledge of the sector, and a growing network of industry players including mortgage brokers, real estate agents, banks, and fellow appraisers that'll want to utilize your services.
Market your talents to building contractors. People purchasing new homes can often be overwhelmed with the choices and possibilities in home decorating. Design some questionnaires for each major element and each major room in the house. Find out how the homeowner will use the home--are there children? Pets? Does the woman of the house wear high heels? Do the home's residents neglect to remove shoes? How will each room be used? Where might task lighting and ambient lighting be most appropriate?