Some activities are just hobbies but some people turn it to an actual career, which they started making millions out of it. Well these are lists of hobbies that as turned to an actual profession.

DJ_ing:
Disc jocking was not really a thing back in the late 90s, But it all start to turn to an actual profession in the early 2000s, Some of the pioneer of this profession in Nigeria is DJ Jimmy Jatt, DJ Neptune and Dj Bombastic to mention a few. But today we see people making millions out of this HOBBY, People likeSuperstar DJ Xclusive, DJ Cuppy, DJ Spinall, etc.

Makeup Artist:
Facial makeover back in the day was something a friend would do for you for free, It was just a thing you do for fun, But all that as changed in the last 5 years, people has made a profession out of this talent and they are making millions out of it. From experience a professional makeup artist can make at least fifty thousand Naira per person.

Blogging:
Back in the day, only nerds have blogs where they write their thought and aspiration, but today people are making millions from writing on the internet.

Gamer:
I did not know this was a thing until recent when I saw that some people are actually making millions from playing games on the internet. Yeah, some people right now are make money and earning a living by playing video games online.

Photography
Photography is a pastime that’s part hobby, and part artwork. but nowadays you see people make some money with this hobby. Though many people take photos all the time, only a few of us are really actually good at it.

Source: https://9jalife.com.ng/5-hobbies-turned-actual-career/

6. Prostitution/Oloshoism. Nymphos have monetized their hobby.