I don't have any investments or things which give me passive income but im really trying hard to make one but as we all know its not an easy thing to do because you would really need hard work and money in able to attain it. Passive in come means you earn profits without doing anything which is a really a good thing.
Many consider trust trading as a passive income. At the forum, there are several proposals for the organization of such services. Maybe you heard about it
https://bitcointalk.org/index.php?topic=1432889.0