Ask HN: Some ideas to make 20,000$ in a year without a degree?

I'm studying engineering, but undergraduate. I know web development, but I haven't enough time to work part-time while studying engineering.

I'm interested in ALL KINDS OF IDEAS like: (Private lessons of math or web dev, newspapers delivering...anything!) Do you have some ideas?

I just need $ 20k to pay my abroad degree and independent-life

PS: Please, tell me something I didn't thought yet