Well, this could be funny.
How did you make money as a kid, or now? Like something on the side, getting that extra cash every months?
Here's some stuff i'm familiar with and "my friend's did"
Work as a electrician and car mechanic (night time)
Selling liquor to 15 year olds.
Grow that weed and sold it.
We found a lot of gas/diesel and sold it
I should add that now i'm a hard working man!