This is a great way to make money with your hobby when it does not produce a tangible product. An example of this would be teaching piano lessons if piano playing is your hobby. You can offer frequent lessons on a weekly or monthly basis, or you might prefer more occasional and more in-depth options like workshops. This is perfect for anyone who does not have a finished product to sell or does not want to teach. For example, if you enjoy indoor gardening by creating terrariums, you could collect and sell fun and interesting vintage bottles online. Everyone is eco-friendly these days.