These aren’t just part-time jobs or side hustles, but alternative investments or non-full-time business opportunities that require some type of upfront capital. And the vast majority of these investment opportunities are not just accessible by hedge funds, private equity funds, or high net worth investors — they are available to ordinary , Heavy money investment upfront that creates passive streams of income. There are some that can sort of skirt the line. For many of the passive income business ideas like renting a room (or house) on Airbnb or storing someone's things, you need to own property. That's fine, we've covered both here in-depth., Not every unusual investment will become more valuable. Furthermore, the unusual investment ideas in this list have times where their value decreases. In the worst case, some may never increase in value. Most importantly, asset values are influenced by the fundamentals of supply and demand., , , .